* Used for accurate pH, temperature and redox potential (mV) measurements.* Useful for measurements in the field and laboratory.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Low weight and small size make working in the field easier.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable. * Meter is equipped with easy to read back-light LCD display with brightness control.* HOLD function to freeze the result on the display.* Signalization of the result stabilization READY with symbol and sound.* Possibility of connecting with a PC by a micro USB output and micro USB USB cabledelivered in set.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

* Laboratory meter in bench-top housing, powered with 12V power adapter.* Measures accurately - pH, redox potential (mV) and temperature.* Meter is equipped with a large, easy-to-read backlit LCD display with brightness control.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations. * Calibration of the pH electrode: 1 to 5 points. Automatic buffers detection, their valuemay be changed by the user.* Automatic correction of the pH sample solution value changes, along with thetemperature changes for NIST standards.* Automatic or manual temperature compensation.* Memory of 3 electrodes characteristics makes changing them easy.* Automatic evaluation of the electrodes condition. * Precise redox potential measurement (accuracy 0.1 mV).* Possibility of automatic calculation of the redox reading in relation to the chloride silverelectrode to the hydrogen electrode.

* Measures accurately: pH, redox potential, ion concentration in pX, gl, Ml, or ppmand temperature (C).* The meter is equipped with large, easy-to-read backlit LCD display with brightness control.* Enables ion concentration measurements of monovalent, bivalent, negative and positive ions.* Separate isolated connectors for pH and Ion Selective Electrode enable their simultaneous connecting and measurements in one vessel. Ion Measurement:* The range of the meter enables work with all available ion selective electrodes (ISE), chosen adequately to the kind of measured ion, equipped with BNC 50 connector.* Entering automatically the molar weight of a particular ion.* Automatic unit conversion (e.g. moll to mgl).* Possibility of entering freely chosen values of ion standard solutions.* Automatic and manual temperature compensation.* The meter stores 3 characteristics of pH electrodes and ion selective electrodes independently.

CC-105 enables measurements of conductivity, salinity in gl of NaCl and temperature, Fully waterproof (IP-67). Designed for field work, Wide measuring range enables measurements in liquids with conductivity up to 100 mScmand salinity up to 60 gl converted to NaCl. 5 sub-ranges switched automatically, Converting conductivity to salinity is done according to the real dependence, instead of a constant coefficient., Reference temperature 25C or 20C for measurements made in honey.The coefficient = 2%C., Steel electrodes enable measurements of liquids with deposits and oils, Automatic temperature compensation in range 0 to 50 C, Calibration of the conductivity cell by entering the constant K or in standard solutions, Automatic switch off function protects the batteries against discharging.

Used for conductivity, salinity, TDS and temperature measurements of high accuracy for work in the field and in the laboratory, Newly introduced function is the resistivity measurement of the tested liquid, Salinity measurement in NaCl or KCl based on real characteristics, Defining the TDS (Total Dissolved Solids) based on conductivity measurement, Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions, 6 sub-ranges switched automatically, HOLD function to freeze the result on the display, Signalisation of the result stabilisation READY with symbol and sound, Wide range of coefficient 0 to 10 % C chosen depending on the measured solution, In case of measurements of natural water with conductivity from 60 Scm to 1 mScmthe meter enables using non-linear temperature compensation. The parameters of this typeof water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error, The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.

Laboratory meter in bench-top housing, powered by 12V power adapter, The meter is equipped with a large, easy-to-read back-light LCD display with brightness control., Measures conductivity, salinity, resistivity, TDS and temperature., The most recent version of this model has been updated and has more possibilities which facilitate usage and increase accuracy, HOLD function to freeze the result on the display, Signalisation of the result stabilisation READY with symbol and sound., Possibility of sending to a PC a report of calibration - up to 10 last calibrations., Thanks to a wide conductivity measuring range it may be used for ultra pure water as well as saline water, 6 sub-ranges switched automatically

Used for measurements in both field and laboratory.* Measures atmospheric (Air) oxygen in %, oxygen dissolved in water and sewage in % of saturation or mg/l, temperature and atmospheric pressure.* Possibility of determining the purity of technical oxygen.

* Air pressure measurement with automatic calculation of its influence on the oxygen measurement result. * Possibility of introducing the actual salinity value with automatic calculation of its influence on the oxygen measurement result.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Low weight and small size make working in the field easier.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Equipped with easy-to-read backlit LCD with brightness control.* Easy in use galvanic oxygen sensor (1 or 2 point oxygen sensor calibration)* Remembers the next calibration date.* Automatic or manual temperature compensation.* Wide measuring range enables measurements in lakes with blooming vegetation.* Internal Clock with date. * Internal data logger enables storing up to 4000 results, taken in series or singly with temperature, time and date. The results and characteristics are stored in non-volatile memory.

* Possibility of sending to PC a report of calibration - up to 10 last calibrations.* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable.* The meter meets the GLP requirements.

Laboratory meters in bench-top housing, powered by 12V power adapter, Large easy-to-read backlit LCD display facilitates work, Each of the models measure oxygen dissolved in water and sewage in % of saturation or in mgl, temperature and air pressure, CCO-505 model additionally measures conductivity and salinity. CPO-505 additionally measures pH and redox potential.Unification of the procedures in all measuring functions makes working easier, Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

Designed for field workUsed for measurements:* in clean water with low deposits content - with GP-105 head, * in sewage, soil, paste, cream - with GPX-105s head, * for redox (mV) measurements with GR-105k head.

* Fully waterproof, floats on the surface of water.* Calibration upto 3 points - Automatic detection of buffer solutions 4, 00, 7, 00, 9, 00 pH or 4, 00, 7, 00, 10, 00 pH* Automatic temperature compensation.* In the redox (mV) measuring function possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode (important on swimming pools).* Powered with batteries (3 x LR44).* Automatic switch off function protects the batteries against discharging.

Used for accurate pH, temperature and redox potential (mV) measurements.* Useful for measurements in the field and laboratory.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Low weight and small size make working in the field easier.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable. * Meter is equipped with easy to read back-light LCD display with brightness control.* HOLD function to freeze the result on the display.* Signalization of the result stabilization READY with symbol and sound.* Possibility of connecting with a PC by a micro USB output and micro USB USB cable delivered in set.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

pH Measurement:

* Possibility of making measurements in clean water, sewage, soil, meat, cheese, paints etc., depending on the kind of applied pH electrode.* Calibration of the pH electrode: 1 to 5 points. Automatic detection of buffer solutions, their values may be changed by the user in the given range. Automatic correction of the pH sample solution value changes, along with the temperature changes for NIST standards.* Automatic or manual temperature compensation.* Readout of the pH electrode condition and data - the zero offset and slope percentage may be checked.

Redox Measurement:

Precise Redox potential measurement (accuracy 0.1 mV).Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode. Internal Clock with date. - Reminding about the calibration date exceeding - Automatic evaluation of the of electrodes condition.Storage of 3 electrodes characteristics enables to replace them quickly feature very useful during field work. The date of calibration of each pH electrode stored by the meter, with possibility of signalisation of the moment when next calibration should be done.Internal data-logger for up to 4000 sets of results collected in series or singly with temperature time and date. The results and calibration data are stored in non-volatile memory.The meter meets the GLP requirements Auto switch off function, with time set by user, to protect the batteries against discharging.

Laboratory meter in bench-top housing, powered with 12V power adapter.* Measures accurately - pH, redox potential (mV) and temperature.* Meter is equipped with a large, easy-to-read backlit LCD display with brightness control.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

* Calibration of the pH electrode: 1 to 5 points. Automatic buffers detection, their value may be changed by the user.* Automatic correction of the pH sample solution value changes, along with the temperature changes for NIST standards.* Automatic or manual temperature compensation.* Memory of 3 electrodes characteristics makes changing them easy.* Automatic evaluation of the electrodes condition.

* Precise redox potential measurement (accuracy 0.1 mV).* Possibility of automatic calculation of the redox reading in relation to the chloride / silver electrode to the hydrogen electrode.

* Internal clock with date - Storing of the pH electrode calibration date.* Internal data-logger for up to 4000 sets of results collected in series or singly with temperature, time and date.* The results and calibration data are stored in non-volatile memory.* USB output for a PC.* The meter meets the GLP requirements.

Measures accurately: pH, redox potential, ion concentration in pX, g/l, M/l, or ppm and temperature (C).* The meter is equipped with large, easy-to-read backlit LCD display with brightness control.* Enables ion concentration measurements of monovalent, bivalent, negative and positive ions.* Separate isolated connectors for pH and Ion Selective Electrode enable their simultaneous connecting and measurements in one vessel.

Ion Measurement: * The range of the meter enables work with all available ion selective electrodes (ISE), chosen adequately to the kind of measured ion, equipped with BNC 50 connector.* Entering automatically the molar weight of a particular ion.* Automatic unit conversion (e.g. mol/l to mg/l).* Possibility of entering freely chosen values of ion standard solutions.* Automatic and manual temperature compensation.* The meter stores 3 characteristics of pH electrodes and ion selective electrodes independently.

pH measurement:* Calibration of the pH electrode: 1 to 5 points.* Automatic pH buffer detection, their value may be set by the user.* Automatic correction of the stored pH standard value influenced by the temperature change (compliant with NIST).* Information about the pH electrodes condition.* Depending on type of the chosen electrode making measurement in pure water, sewage, pastes, etc.* Internal data-logger for up to 4000 sets of results with temperature, time and date.* Collecting series of readouts with intervals set by the user.* Possibility to enter the next calibration date into memory.* USB output.* The meter meets the GLP requirements.* Internal clock with date.

CC-105 enables measurements of conductivity, salinity in g/l of NaCl and temperature.* Fully waterproof (IP-67). Designed for field work.* Wide measuring range enables measurements in liquids with conductivity up to 100 mS/cm and salinity up to 60 g/l converted to NaCl. 5 sub-ranges switched automatically.* Converting conductivity to salinity is done according to the real dependence, instead of a constant coefficient.* Reference temperature 25C or 20C for measurements made in honey.* The coefficient = 2%/C.* Steel electrodes enable measurements of liquids with deposits and oils.* Automatic temperature compensation in range 0 to 50 C.* Calibration of the conductivity cell by entering the constant K or in standard solutions.* Automatic switch off function protects the batteries against discharging.

Used for conductivity, salinity, TDS and temperature measurements of high accuracy for workin the field and in the laboratory.* Newly introduced function is the resistivity measurement of the tested liquid.* Salinity measurement in NaCl or KCl based on real characteristics.* Defining the TDS (Total Dissolved Solids) based on conductivity measurement.* Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions. * 6 sub-ranges switched automatically.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Wide range of coefficient 0 to 10 % / C chosen depending on the measured solution.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.* Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.* Possibility of changing the reference temperature value.* In set with high accuracy conductivity cell ECF-1. Measuring range 0 to 500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damages.* Ability to store constants K of three cells, which cover the whole conductivity range.* Possibility to measure electric admittance of tree seedlings checking the vitality of seedlings with a special sensor.* Equipped with an easy-to-read back-light LCD display with brightness control.* Internal clock with date.* Internal data-logger - storing up to 4000 measurements taken singly or in series with time, temperature and date all data stored in non-volatile memory.* Storing the date of next calibration and reminding it in the right moment to the user.* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered with rechargeable batteries, or power adapter with USB - micro / USB cable.* Waterproof housing (IP-66) facilitates working in difficult conditions.

Laboratory meter in bench-top housing, powered by 12V power adapter.* The meter is equipped with a large, easy-to-read back-light LCD display with brightness control.* Measures conductivity, salinity, resistivity, TDS and temperature.* The most recent version of this model has been updated and has more possibilities which facilitate usage and increase accuracy.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.* Thanks to a wide conductivity measuring range it may be used for ultra pure water as well as saline water.* 6 sub-ranges switched automatically.* Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.* Possibility of changing the reference temperature.* Stores constants K of 3 cells which cover the whole measuring range.* Wide range of coefficient chosen depending on the kind of measured solution.* Possibility of changing the reference temperature value.* Automatic or manual temperature compensation.* Converting conductivity into salinity in NaCl or KCl based on the real characteristics instead of a constant coefficient what greatly increases the accuracy.* Possibility to determine the TDS with possibility of entering the TDS coefficient value in the range 0.2 to 1.0.* Measuring range 0to500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damage.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined by the norm EN27888:1999 and concerns surface water, deep water and well water.* This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation has been improved by automatic adjustment of coefficient depending on the kind of trace contaminations and temperature.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken in series or singly with temperature, time and date.* Additional function of resistivity measurement in liquid.* Storing the date of next calibration and remembering it in the right moment to the user.* Non-volatile memory.* USB output. The meter meets the GLP requirements.* 24 months of warranty for the meter.

Laboratory meters in bench-top housing, powered by 12V power adapter.* Large easy-to-read backlit LCD display facilitates work.* Each of the models measure oxygen dissolved in water and sewage in % of saturation or in mg/l, temperature and air pressure.* CCO-505 model additionally measures conductivity and salinity. CPO-505 additionally measures pH and redox potential.* Unification of the procedures in all measuring functions makes working easier.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

Oxygen measurement function:* Galvanic dissolved oxygen sensor.* Each of the models equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l. Easy to operate * Calibration of the oxygen sensor in 1 or 2 points. Automatic or manual temperature compensation.* In CO-505 meter possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.* CCO-505 model automatically counts the influence of salinity measured in the conductivity mode on the oxygen measurement result.

Conductivity measurement function in CCO-505:* Full conductivity measuring range enables measurements in ultra pure water as well as saline.* 6 sub-ranges switched automatically.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined by the norm EN27888:1999 and concerns surface water, deep water and well water.* This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation has been improved by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.* Calibration by entering the constant K in range 0.0119.999 cm-1 or in standards in 1 5 points.* Possibility to store constants K of three cells, which cover the whole conductivity range.* Wide range of coefficient (010% / C) chosen depending on a kind of measured liquid.* Possibility of changing the reference temperature.* Converting the conductivity into salinity in NaCl and KCl proceeds according to the real dependence, what greatly increases accuracy.* Possibility of determining the TDS by entering the TDS coefficient.* In set with high accuracy conductivity cell. Measuring range 0500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damage.

pH measurement function in CPO-505:* The pH and conductivity measurement circuits are isolated.* Calibration in 1 to 5 points.* Automatic detection of the buffer solutions values entered by the user.* Automatic correction of the standard solutions pH value changes along with the temperature changes for NIST standards.* Storing of 3 pH electrodes characteristics enables to replace them quickly very useful feature during field work.* Automatic evaluation of the electrodes condition. Readout of the electrode's characteristic slope.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.

mV redox measurement function in CPO-505:* Precise Redox potential measurement (accuracy 0.1mV).* Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode.

Other features :* Automatic or manual temperature compensation.* Remembers the next calibration date.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.* The results and calibration data are stored in non-volatile memory.* USB output for connecting with a PC.* The meters meet the GLP requirements.

CX-105 is a multi-purpose meter which enables to make different kinds of measurements depending on the type of the chosen head. Complete set of heads enables following measurements: pH, mV, redox potential, conductivity, salinity, oxygen dissolved in water in mgl or %, humidity with possibility to determine the dew point, temperature of the surface and temperature of liquids or air.The user may choose appropriate heads.

CX-401 measures : pH, redox potential (mV), conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mgl, atmospheric pressure and temperature.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.The meter may be used for the field measurements as well as during accurate laboratory work.The meter is equipped with an easy-to-read back-light LCD display with brightness control.All functions are distinctive by very high accuracy and repeatability.Unification of the operating procedures in all measuring functions makes workingtrouble-free.Low weight and small size make working in the field easier.Waterproof housing (IP-66) enables working in difficult conditions.

CX-505 measures pH, redox potential (mV), conductivity, salinity, resistivity, concentration of oxygen dissolved in water in % of saturation or in mgl, atmospheric pressure and temperature.The measurements made in all measuring functions are of very high accuracy and stability.Unification of the procedures in all measuring functions makes working easier.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

CX-105 is a multi-purpose meter which enables to make different kinds of measurements depending on the type of the chosen head. Complete set of heads enables following measurements: pH, mV, redox potential, conductivity, salinity, oxygen dissolved in water in mg/l or %, humidity with possibility to determine the dew point, temperature of the surface and temperature of liquids or air.The user may choose appropriate heads.The meter cooperates with the following heads:* GP-105 - for pH and temperature measurement in water with low deposit content;* GPX-105s - for pH and temperature measurements in waste water or other viscous samples;* GR-105k- for redox potential and temperature measurement, electrode with cable;* GC-105 - for conductivity, salinity and temperature measurement;* GO-105 - for oxygen dissolved in water, in % or mg/l and temperature measurements, probe without cable;* GO-105K - for oxygen dissolved in water, in % or mg/l and temperature measurements, probe with cable;* GT-105 - for accurate temperature measurement, without cable;* GT-105k - for accurate temperature measurement, probe with cable;* GH-105 - for humidity and dew point measurements, sensor without cable;* GH-105k - for humidity and dew point measurements, sensor with cable;* GH-105p - for humidity and dew point measurements, sensor without cable but with RCA (chinch) connector for surface temperature probe, what enables to decide if painting on the surface in existing conditions is advisable.

pH measurementpH calibration in 1 to 3 points.Automatic detection of the buffer solutions 4.00, 7.00, 9.00 pH (optionally: 4.00, 7.00, 10.00 pH).Automatic temperature compensation. The GPX-105s head is equipped with durable pH electrode made by Australian company Ionode, having non-standard construction with an intermediate junction which protects the actual electrodes junction against clogging. Enables stable measurement in sewage and semi-solid substances, where standard electrodes quickly lose efficiency. Depending on needs an appropriate tip for the electrode can be chosen.

Redox (mV) measurementAccuracy 1mV.Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode. Conductivity and salinity measurement5 sub-ranges switched automatically.Wide measuring range in conductivity mode (up to 100 mS/cm) enables using the meter formeasurements in pure water, waste water or in sea water. Salinity measurement in range up to 60 g/l converted to NaCl.In the conductivity measuring mode possibility of calibration by introducing the constant K or in astandard solution.The reference temperature value may be chosen between 25oC or 20oC for measurement in honey.

Oxygen concentration measurement* 1 point calibration (in 100% O2 saturation).* Oxygen measurement in % or in mg/l.* Possibility of introducing a correction connected with the salinity of the sample.* Galvanic oxygen sensor of good quality. Temperature measurement* Separate head for temperature measurements enables measurements up to 150 C with 3 cm* probe without cable, 200 C with 12 cm probe without cable, 400 C with every probe equipped with cable;* Accuracy of the temperature measurement depends on the kind of the chosen probe. Other features* Used for field work.* Good accuracy and minimised size.* Fully waterproof housing, floats if dropped in the water.* Powered by 3 x LR44 batteries* Long-lasting work on one battery set.* Automatic switch-off function to protect the batteries against discharging

CX-401 measures : pH, redox potential (mV), conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mg/l, atmospheric pressure and temperature.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.The meter may be used for the field measurements as well as during accurate laboratory work.The meter is equipped with an easy-to-read back-light LCD display with brightness control.All functions are distinctive by very high accuracy and repeatability.Unification of the operating procedures in all measuring functions makes workingtrouble-free.Low weight and small size make working in the field easier.Waterproof housing (IP-66) enables working in difficult conditions.

In the pH measurement function:Depending on the kind of applied electrode it may be used for clean water, sewage, soil, meat, paint etc. Calibration of the pH electrode in 1 to 5 points.Automatic detection of buffer solutions, their values may be set by the user.Automatic correction of the pH sample solution value changes along with the temperature changes for NIST standards.Automatic or manual temperature compensation.Possibility of storing characteristics of 3 pH electrodes enables their quick replacing - very useful feature during field work.Automatic control of the electrodes condition.Readout of the pH electrode condition and data - the zero offset and slope percentage may be checked.

In the mV and redox potential measurement function:Precise Redox potential measurement (accuracy 0.1mV).Possibility of mV measurement in relation to the set or measured reference potential (Vref).Possibility of automatic calculation of the redox reading in relation to chloride/silver electrode to the hydrogen electrode. In the conductivity measurement function:Full measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.The liquid resistivity measurement option added.Salinity measurement in NaCl or KCl on the basis of the actual real characteristics.Defining the TDS (Total Dissolved Solids) based on conductivity measurement.6 sub-ranges switched automatically.In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error.The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the temperature and kind of trace contaminations.Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.Wide range of coefficient 0 10 % / C chosen depending on the measured solution.Possibility of changing the reference temperature.High accuracy conductivity cell ECF-1 available as additional equipment. Measuring range 0500mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metalelectrodes are easy to clean and PVC body protects it against mechanical damage.Possibility to measure electric admittance of tree seedlings checking the vitality of seedlings afterpurchasing a special sensor.

In the oxygen measurement function:Possibility of measurement of the oxygen dissolved in the liquids and oxygen in the air.Atmospheric pressure measurement with automatic calculation of its influence on measurement of the dissolved oxygen in water in % or mg/l.Automatic conversion of the salinity measured in the conductivity mode to the oxygen measurement mode with calculation of its influence on the oxygen content value.Easy in use and maintenance galvanic oxygen sensor.1 or 2 point oxygen sensor calibration.Wide measuring range enables measurements in lakes with blooming vegetation. Other features:* Automatic or manual temperature compensation.* Internal clock with date.* Collecting up to 4000 results in the internal data logger with temperature, time and date, also taking series of measurements possible.* Non-volatile memory of the stored results and calibration data* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable.* The meter meets the GLP requirements.* 24 months of warranty for the meter.* The meter was awarded with a golden medal on International Fair EUROLAB.* Possibility of choosing the meter equipped with separate connectors or with multi-pin connector for multifunction measuring head.

CX-505 measures pH, redox potential (mV), conductivity, salinity, resistivity, concentration of oxygen dissolved in water in % of saturation or in mg/l, atmospheric pressure and temperature.The measurements made in all measuring functions are of very high accuracy and stability.Unification of the procedures in all measuring functions makes working easier.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations. In the pH measuring function:Calibration of the pH electrode: 1 to 5 points.Automatic detection of the buffers value entered by the user.Automatic correction of the standard solution value (NIST) along with the temperature changes.Possibility to store characteristics of 3 electrodes makes changing them easily.Automatic evaluation of the electrodes condition.Depending on the chosen electrode possible measurements in pure water, sewage, pastes, etc.

In the redox (mV) measuring function:Precise redox potential measurement (accuracy 0.1mV).Possibility to measure redox potential relatively to the entered or measured reference potentialVref.Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrodeto the hydrogen electrode. In the conductivity measuring function:Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.Newly introduced function is the resistivity measurement of the tested liquid.Salinity measurement in NaCl or KCl on the basis of the actual real characteristics.Defining the TDS (Total Dissolved Solids) based on conductivity measurement.6 sub-ranges switched automatically.In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. Thissolution lowers the measurement error.The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the temperature and kind of trace contaminations.Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.Wide range of coefficient 0 to 10 % / C chosen depending on the measured solution.Possibility of changing the reference temperature.In set with high accuracy conductivity cell ECF-1. Measuring range 0500 mS/cm sufficient formeasurements in ultra pure water and high salt concentration samples. Metal electrodes are easyto clean and PVC body protects it against mechanical damage.Possibility of storing constant K of 3 conductivity cells.Automatic conversion of conductivity into salinity in NaCl or KCl on the basis of the actualcharacteristics and not a constant coefficient, what greatly increases accuracy.

In the oxygen measurement function:Galvanic dissolved oxygen sensor.Each of the models equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l.The meter with dissolved oxygen sensor are easy to operate.Calibration of the oxygen sensor in 1 or 2 points.Automatic or manual temperature compensation.Possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.The meter automatically counts the influence of salinity measured in the conductivity mode on the oxygen measurement result. Other features:* Automatic or manual temperature compensation.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.* The results and calibration data are stored in non-volatile memory.* Remembers the next calibration date.* USB output for connecting with PC.* The meter meets the GLP requirements.

The meter may be used for the field measurements as well as during accurate laboratory work. The meter is equipped with an easy-to-read back-light LCD display with brightness control. All functions are distinctive by very high accuracy and repeatability. Unification of the operating procedures in all measuring functions makes working trouble-free. Low weight and small size make working in the field easier.

* Used for accurate pH, temperature and redox potential (mV) measurements.* Useful for measurements in the field and laboratory.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Low weight and small size make working in the field easier.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable. * Meter is equipped with easy to read back-light LCD display with brightness control.* HOLD function to freeze the result on the display.* Signalization of the result stabilization READY with symbol and sound.* Possibility of connecting with a PC by a micro USB output and micro USB USB cabledelivered in set.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

* Laboratory meter in bench-top housing, powered with 12V power adapter.* Measures accurately - pH, redox potential (mV) and temperature.* Meter is equipped with a large, easy-to-read backlit LCD display with brightness control.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations. * Calibration of the pH electrode: 1 to 5 points. Automatic buffers detection, their valuemay be changed by the user.* Automatic correction of the pH sample solution value changes, along with thetemperature changes for NIST standards.* Automatic or manual temperature compensation.* Memory of 3 electrodes characteristics makes changing them easy.* Automatic evaluation of the electrodes condition. * Precise redox potential measurement (accuracy 0.1 mV).* Possibility of automatic calculation of the redox reading in relation to the chloride silverelectrode to the hydrogen electrode.

* Measures accurately: pH, redox potential, ion concentration in pX, gl, Ml, or ppmand temperature (C).* The meter is equipped with large, easy-to-read backlit LCD display with brightness control.* Enables ion concentration measurements of monovalent, bivalent, negative and positive ions.* Separate isolated connectors for pH and Ion Selective Electrode enable their simultaneous connecting and measurements in one vessel. Ion Measurement:* The range of the meter enables work with all available ion selective electrodes (ISE), chosen adequately to the kind of measured ion, equipped with BNC 50 connector.* Entering automatically the molar weight of a particular ion.* Automatic unit conversion (e.g. moll to mgl).* Possibility of entering freely chosen values of ion standard solutions.* Automatic and manual temperature compensation.* The meter stores 3 characteristics of pH electrodes and ion selective electrodes independently.

CC-105 enables measurements of conductivity, salinity in gl of NaCl and temperature, Fully waterproof (IP-67). Designed for field work, Wide measuring range enables measurements in liquids with conductivity up to 100 mScmand salinity up to 60 gl converted to NaCl. 5 sub-ranges switched automatically, Converting conductivity to salinity is done according to the real dependence, instead of a constant coefficient., Reference temperature 25C or 20C for measurements made in honey.The coefficient = 2%C., Steel electrodes enable measurements of liquids with deposits and oils, Automatic temperature compensation in range 0 to 50 C, Calibration of the conductivity cell by entering the constant K or in standard solutions, Automatic switch off function protects the batteries against discharging.

Used for conductivity, salinity, TDS and temperature measurements of high accuracy for work in the field and in the laboratory, Newly introduced function is the resistivity measurement of the tested liquid, Salinity measurement in NaCl or KCl based on real characteristics, Defining the TDS (Total Dissolved Solids) based on conductivity measurement, Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions, 6 sub-ranges switched automatically, HOLD function to freeze the result on the display, Signalisation of the result stabilisation READY with symbol and sound, Wide range of coefficient 0 to 10 % C chosen depending on the measured solution, In case of measurements of natural water with conductivity from 60 Scm to 1 mScmthe meter enables using non-linear temperature compensation. The parameters of this typeof water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error, The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.

Laboratory meter in bench-top housing, powered by 12V power adapter, The meter is equipped with a large, easy-to-read back-light LCD display with brightness control., Measures conductivity, salinity, resistivity, TDS and temperature., The most recent version of this model has been updated and has more possibilities which facilitate usage and increase accuracy, HOLD function to freeze the result on the display, Signalisation of the result stabilisation READY with symbol and sound., Possibility of sending to a PC a report of calibration - up to 10 last calibrations., Thanks to a wide conductivity measuring range it may be used for ultra pure water as well as saline water, 6 sub-ranges switched automatically

Used for measurements in both field and laboratory.* Measures atmospheric (Air) oxygen in %, oxygen dissolved in water and sewage in % of saturation or mg/l, temperature and atmospheric pressure.* Possibility of determining the purity of technical oxygen.

* Air pressure measurement with automatic calculation of its influence on the oxygen measurement result. * Possibility of introducing the actual salinity value with automatic calculation of its influence on the oxygen measurement result.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Low weight and small size make working in the field easier.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Equipped with easy-to-read backlit LCD with brightness control.* Easy in use galvanic oxygen sensor (1 or 2 point oxygen sensor calibration)* Remembers the next calibration date.* Automatic or manual temperature compensation.* Wide measuring range enables measurements in lakes with blooming vegetation.* Internal Clock with date. * Internal data logger enables storing up to 4000 results, taken in series or singly with temperature, time and date. The results and characteristics are stored in non-volatile memory.

* Possibility of sending to PC a report of calibration - up to 10 last calibrations.* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable.* The meter meets the GLP requirements.

Laboratory meters in bench-top housing, powered by 12V power adapter, Large easy-to-read backlit LCD display facilitates work, Each of the models measure oxygen dissolved in water and sewage in % of saturation or in mgl, temperature and air pressure, CCO-505 model additionally measures conductivity and salinity. CPO-505 additionally measures pH and redox potential.Unification of the procedures in all measuring functions makes working easier, Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

Designed for field workUsed for measurements:* in clean water with low deposits content - with GP-105 head, * in sewage, soil, paste, cream - with GPX-105s head, * for redox (mV) measurements with GR-105k head.

* Fully waterproof, floats on the surface of water.* Calibration upto 3 points - Automatic detection of buffer solutions 4, 00, 7, 00, 9, 00 pH or 4, 00, 7, 00, 10, 00 pH* Automatic temperature compensation.* In the redox (mV) measuring function possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode (important on swimming pools).* Powered with batteries (3 x LR44).* Automatic switch off function protects the batteries against discharging.

Used for accurate pH, temperature and redox potential (mV) measurements.* Useful for measurements in the field and laboratory.* Waterproof housing (IP-66) facilitates working in difficult conditions.* Low weight and small size make working in the field easier.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable. * Meter is equipped with easy to read back-light LCD display with brightness control.* HOLD function to freeze the result on the display.* Signalization of the result stabilization READY with symbol and sound.* Possibility of connecting with a PC by a micro USB output and micro USB USB cable delivered in set.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

pH Measurement:

* Possibility of making measurements in clean water, sewage, soil, meat, cheese, paints etc., depending on the kind of applied pH electrode.* Calibration of the pH electrode: 1 to 5 points. Automatic detection of buffer solutions, their values may be changed by the user in the given range. Automatic correction of the pH sample solution value changes, along with the temperature changes for NIST standards.* Automatic or manual temperature compensation.* Readout of the pH electrode condition and data - the zero offset and slope percentage may be checked.

Redox Measurement:

Precise Redox potential measurement (accuracy 0.1 mV).Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode. Internal Clock with date. - Reminding about the calibration date exceeding - Automatic evaluation of the of electrodes condition.Storage of 3 electrodes characteristics enables to replace them quickly feature very useful during field work. The date of calibration of each pH electrode stored by the meter, with possibility of signalisation of the moment when next calibration should be done.Internal data-logger for up to 4000 sets of results collected in series or singly with temperature time and date. The results and calibration data are stored in non-volatile memory.The meter meets the GLP requirements Auto switch off function, with time set by user, to protect the batteries against discharging.

Laboratory meter in bench-top housing, powered with 12V power adapter.* Measures accurately - pH, redox potential (mV) and temperature.* Meter is equipped with a large, easy-to-read backlit LCD display with brightness control.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

* Calibration of the pH electrode: 1 to 5 points. Automatic buffers detection, their value may be changed by the user.* Automatic correction of the pH sample solution value changes, along with the temperature changes for NIST standards.* Automatic or manual temperature compensation.* Memory of 3 electrodes characteristics makes changing them easy.* Automatic evaluation of the electrodes condition.

* Precise redox potential measurement (accuracy 0.1 mV).* Possibility of automatic calculation of the redox reading in relation to the chloride / silver electrode to the hydrogen electrode.

* Internal clock with date - Storing of the pH electrode calibration date.* Internal data-logger for up to 4000 sets of results collected in series or singly with temperature, time and date.* The results and calibration data are stored in non-volatile memory.* USB output for a PC.* The meter meets the GLP requirements.

Measures accurately: pH, redox potential, ion concentration in pX, g/l, M/l, or ppm and temperature (C).* The meter is equipped with large, easy-to-read backlit LCD display with brightness control.* Enables ion concentration measurements of monovalent, bivalent, negative and positive ions.* Separate isolated connectors for pH and Ion Selective Electrode enable their simultaneous connecting and measurements in one vessel.

Ion Measurement: * The range of the meter enables work with all available ion selective electrodes (ISE), chosen adequately to the kind of measured ion, equipped with BNC 50 connector.* Entering automatically the molar weight of a particular ion.* Automatic unit conversion (e.g. mol/l to mg/l).* Possibility of entering freely chosen values of ion standard solutions.* Automatic and manual temperature compensation.* The meter stores 3 characteristics of pH electrodes and ion selective electrodes independently.

pH measurement:* Calibration of the pH electrode: 1 to 5 points.* Automatic pH buffer detection, their value may be set by the user.* Automatic correction of the stored pH standard value influenced by the temperature change (compliant with NIST).* Information about the pH electrodes condition.* Depending on type of the chosen electrode making measurement in pure water, sewage, pastes, etc.* Internal data-logger for up to 4000 sets of results with temperature, time and date.* Collecting series of readouts with intervals set by the user.* Possibility to enter the next calibration date into memory.* USB output.* The meter meets the GLP requirements.* Internal clock with date.

CC-105 enables measurements of conductivity, salinity in g/l of NaCl and temperature.* Fully waterproof (IP-67). Designed for field work.* Wide measuring range enables measurements in liquids with conductivity up to 100 mS/cm and salinity up to 60 g/l converted to NaCl. 5 sub-ranges switched automatically.* Converting conductivity to salinity is done according to the real dependence, instead of a constant coefficient.* Reference temperature 25C or 20C for measurements made in honey.* The coefficient = 2%/C.* Steel electrodes enable measurements of liquids with deposits and oils.* Automatic temperature compensation in range 0 to 50 C.* Calibration of the conductivity cell by entering the constant K or in standard solutions.* Automatic switch off function protects the batteries against discharging.

Used for conductivity, salinity, TDS and temperature measurements of high accuracy for workin the field and in the laboratory.* Newly introduced function is the resistivity measurement of the tested liquid.* Salinity measurement in NaCl or KCl based on real characteristics.* Defining the TDS (Total Dissolved Solids) based on conductivity measurement.* Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions. * 6 sub-ranges switched automatically.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Wide range of coefficient 0 to 10 % / C chosen depending on the measured solution.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.* Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.* Possibility of changing the reference temperature value.* In set with high accuracy conductivity cell ECF-1. Measuring range 0 to 500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damages.* Ability to store constants K of three cells, which cover the whole conductivity range.* Possibility to measure electric admittance of tree seedlings checking the vitality of seedlings with a special sensor.* Equipped with an easy-to-read back-light LCD display with brightness control.* Internal clock with date.* Internal data-logger - storing up to 4000 measurements taken singly or in series with time, temperature and date all data stored in non-volatile memory.* Storing the date of next calibration and reminding it in the right moment to the user.* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered with rechargeable batteries, or power adapter with USB - micro / USB cable.* Waterproof housing (IP-66) facilitates working in difficult conditions.

Laboratory meter in bench-top housing, powered by 12V power adapter.* The meter is equipped with a large, easy-to-read back-light LCD display with brightness control.* Measures conductivity, salinity, resistivity, TDS and temperature.* The most recent version of this model has been updated and has more possibilities which facilitate usage and increase accuracy.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.* Thanks to a wide conductivity measuring range it may be used for ultra pure water as well as saline water.* 6 sub-ranges switched automatically.* Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.* Possibility of changing the reference temperature.* Stores constants K of 3 cells which cover the whole measuring range.* Wide range of coefficient chosen depending on the kind of measured solution.* Possibility of changing the reference temperature value.* Automatic or manual temperature compensation.* Converting conductivity into salinity in NaCl or KCl based on the real characteristics instead of a constant coefficient what greatly increases the accuracy.* Possibility to determine the TDS with possibility of entering the TDS coefficient value in the range 0.2 to 1.0.* Measuring range 0to500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damage.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined by the norm EN27888:1999 and concerns surface water, deep water and well water.* This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation has been improved by automatic adjustment of coefficient depending on the kind of trace contaminations and temperature.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken in series or singly with temperature, time and date.* Additional function of resistivity measurement in liquid.* Storing the date of next calibration and remembering it in the right moment to the user.* Non-volatile memory.* USB output. The meter meets the GLP requirements.* 24 months of warranty for the meter.

Laboratory meters in bench-top housing, powered by 12V power adapter.* Large easy-to-read backlit LCD display facilitates work.* Each of the models measure oxygen dissolved in water and sewage in % of saturation or in mg/l, temperature and air pressure.* CCO-505 model additionally measures conductivity and salinity. CPO-505 additionally measures pH and redox potential.* Unification of the procedures in all measuring functions makes working easier.* HOLD function to freeze the result on the display.* Signalisation of the result stabilisation READY with symbol and sound.* Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

Oxygen measurement function:* Galvanic dissolved oxygen sensor.* Each of the models equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l. Easy to operate * Calibration of the oxygen sensor in 1 or 2 points. Automatic or manual temperature compensation.* In CO-505 meter possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.* CCO-505 model automatically counts the influence of salinity measured in the conductivity mode on the oxygen measurement result.

Conductivity measurement function in CCO-505:* Full conductivity measuring range enables measurements in ultra pure water as well as saline.* 6 sub-ranges switched automatically.* In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined by the norm EN27888:1999 and concerns surface water, deep water and well water.* This solution lowers the measurement error.* The measurement accuracy of the ultra pure water with temperature compensation has been improved by automatic adjustment of the coefficient depending on the kind of trace contaminations and temperature.* Calibration by entering the constant K in range 0.0119.999 cm-1 or in standards in 1 5 points.* Possibility to store constants K of three cells, which cover the whole conductivity range.* Wide range of coefficient (010% / C) chosen depending on a kind of measured liquid.* Possibility of changing the reference temperature.* Converting the conductivity into salinity in NaCl and KCl proceeds according to the real dependence, what greatly increases accuracy.* Possibility of determining the TDS by entering the TDS coefficient.* In set with high accuracy conductivity cell. Measuring range 0500 mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metal electrodes are easy to clean and PVC body protects it against mechanical damage.

pH measurement function in CPO-505:* The pH and conductivity measurement circuits are isolated.* Calibration in 1 to 5 points.* Automatic detection of the buffer solutions values entered by the user.* Automatic correction of the standard solutions pH value changes along with the temperature changes for NIST standards.* Storing of 3 pH electrodes characteristics enables to replace them quickly very useful feature during field work.* Automatic evaluation of the electrodes condition. Readout of the electrode's characteristic slope.* Depending on the kind of applied pH electrode it may be used for clean water, sewage, soil measurements etc.

mV redox measurement function in CPO-505:* Precise Redox potential measurement (accuracy 0.1mV).* Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode.

Other features :* Automatic or manual temperature compensation.* Remembers the next calibration date.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.* The results and calibration data are stored in non-volatile memory.* USB output for connecting with a PC.* The meters meet the GLP requirements.

CX-105 is a multi-purpose meter which enables to make different kinds of measurements depending on the type of the chosen head. Complete set of heads enables following measurements: pH, mV, redox potential, conductivity, salinity, oxygen dissolved in water in mgl or %, humidity with possibility to determine the dew point, temperature of the surface and temperature of liquids or air.The user may choose appropriate heads.

CX-401 measures : pH, redox potential (mV), conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mgl, atmospheric pressure and temperature.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.The meter may be used for the field measurements as well as during accurate laboratory work.The meter is equipped with an easy-to-read back-light LCD display with brightness control.All functions are distinctive by very high accuracy and repeatability.Unification of the operating procedures in all measuring functions makes workingtrouble-free.Low weight and small size make working in the field easier.Waterproof housing (IP-66) enables working in difficult conditions.

CX-505 measures pH, redox potential (mV), conductivity, salinity, resistivity, concentration of oxygen dissolved in water in % of saturation or in mgl, atmospheric pressure and temperature.The measurements made in all measuring functions are of very high accuracy and stability.Unification of the procedures in all measuring functions makes working easier.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.

CX-105 is a multi-purpose meter which enables to make different kinds of measurements depending on the type of the chosen head. Complete set of heads enables following measurements: pH, mV, redox potential, conductivity, salinity, oxygen dissolved in water in mg/l or %, humidity with possibility to determine the dew point, temperature of the surface and temperature of liquids or air.The user may choose appropriate heads.The meter cooperates with the following heads:* GP-105 - for pH and temperature measurement in water with low deposit content;* GPX-105s - for pH and temperature measurements in waste water or other viscous samples;* GR-105k- for redox potential and temperature measurement, electrode with cable;* GC-105 - for conductivity, salinity and temperature measurement;* GO-105 - for oxygen dissolved in water, in % or mg/l and temperature measurements, probe without cable;* GO-105K - for oxygen dissolved in water, in % or mg/l and temperature measurements, probe with cable;* GT-105 - for accurate temperature measurement, without cable;* GT-105k - for accurate temperature measurement, probe with cable;* GH-105 - for humidity and dew point measurements, sensor without cable;* GH-105k - for humidity and dew point measurements, sensor with cable;* GH-105p - for humidity and dew point measurements, sensor without cable but with RCA (chinch) connector for surface temperature probe, what enables to decide if painting on the surface in existing conditions is advisable.

pH measurementpH calibration in 1 to 3 points.Automatic detection of the buffer solutions 4.00, 7.00, 9.00 pH (optionally: 4.00, 7.00, 10.00 pH).Automatic temperature compensation. The GPX-105s head is equipped with durable pH electrode made by Australian company Ionode, having non-standard construction with an intermediate junction which protects the actual electrodes junction against clogging. Enables stable measurement in sewage and semi-solid substances, where standard electrodes quickly lose efficiency. Depending on needs an appropriate tip for the electrode can be chosen.

Redox (mV) measurementAccuracy 1mV.Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrode to the hydrogen electrode. Conductivity and salinity measurement5 sub-ranges switched automatically.Wide measuring range in conductivity mode (up to 100 mS/cm) enables using the meter formeasurements in pure water, waste water or in sea water. Salinity measurement in range up to 60 g/l converted to NaCl.In the conductivity measuring mode possibility of calibration by introducing the constant K or in astandard solution.The reference temperature value may be chosen between 25oC or 20oC for measurement in honey.

Oxygen concentration measurement* 1 point calibration (in 100% O2 saturation).* Oxygen measurement in % or in mg/l.* Possibility of introducing a correction connected with the salinity of the sample.* Galvanic oxygen sensor of good quality. Temperature measurement* Separate head for temperature measurements enables measurements up to 150 C with 3 cm* probe without cable, 200 C with 12 cm probe without cable, 400 C with every probe equipped with cable;* Accuracy of the temperature measurement depends on the kind of the chosen probe. Other features* Used for field work.* Good accuracy and minimised size.* Fully waterproof housing, floats if dropped in the water.* Powered by 3 x LR44 batteries* Long-lasting work on one battery set.* Automatic switch-off function to protect the batteries against discharging

CX-401 measures : pH, redox potential (mV), conductivity, resistivity, salinity in KCl or NaCl, TDS, dissolved oxygen in % of saturation or in mg/l, atmospheric pressure and temperature.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations.The meter may be used for the field measurements as well as during accurate laboratory work.The meter is equipped with an easy-to-read back-light LCD display with brightness control.All functions are distinctive by very high accuracy and repeatability.Unification of the operating procedures in all measuring functions makes workingtrouble-free.Low weight and small size make working in the field easier.Waterproof housing (IP-66) enables working in difficult conditions.

In the pH measurement function:Depending on the kind of applied electrode it may be used for clean water, sewage, soil, meat, paint etc. Calibration of the pH electrode in 1 to 5 points.Automatic detection of buffer solutions, their values may be set by the user.Automatic correction of the pH sample solution value changes along with the temperature changes for NIST standards.Automatic or manual temperature compensation.Possibility of storing characteristics of 3 pH electrodes enables their quick replacing - very useful feature during field work.Automatic control of the electrodes condition.Readout of the pH electrode condition and data - the zero offset and slope percentage may be checked.

In the mV and redox potential measurement function:Precise Redox potential measurement (accuracy 0.1mV).Possibility of mV measurement in relation to the set or measured reference potential (Vref).Possibility of automatic calculation of the redox reading in relation to chloride/silver electrode to the hydrogen electrode. In the conductivity measurement function:Full measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.The liquid resistivity measurement option added.Salinity measurement in NaCl or KCl on the basis of the actual real characteristics.Defining the TDS (Total Dissolved Solids) based on conductivity measurement.6 sub-ranges switched automatically.In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. This solution lowers the measurement error.The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the temperature and kind of trace contaminations.Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.Wide range of coefficient 0 10 % / C chosen depending on the measured solution.Possibility of changing the reference temperature.High accuracy conductivity cell ECF-1 available as additional equipment. Measuring range 0500mS/cm sufficient for measurements in ultra pure water and high salt concentration samples. Metalelectrodes are easy to clean and PVC body protects it against mechanical damage.Possibility to measure electric admittance of tree seedlings checking the vitality of seedlings afterpurchasing a special sensor.

In the oxygen measurement function:Possibility of measurement of the oxygen dissolved in the liquids and oxygen in the air.Atmospheric pressure measurement with automatic calculation of its influence on measurement of the dissolved oxygen in water in % or mg/l.Automatic conversion of the salinity measured in the conductivity mode to the oxygen measurement mode with calculation of its influence on the oxygen content value.Easy in use and maintenance galvanic oxygen sensor.1 or 2 point oxygen sensor calibration.Wide measuring range enables measurements in lakes with blooming vegetation. Other features:* Automatic or manual temperature compensation.* Internal clock with date.* Collecting up to 4000 results in the internal data logger with temperature, time and date, also taking series of measurements possible.* Non-volatile memory of the stored results and calibration data* Possibility of connecting with a PC by micro USB connector* Software for data transmission and collection delivered in set.* Powered by rechargeable batteries, or power adapter with USB - micro USB cable.* The meter meets the GLP requirements.* 24 months of warranty for the meter.* The meter was awarded with a golden medal on International Fair EUROLAB.* Possibility of choosing the meter equipped with separate connectors or with multi-pin connector for multifunction measuring head.

CX-505 measures pH, redox potential (mV), conductivity, salinity, resistivity, concentration of oxygen dissolved in water in % of saturation or in mg/l, atmospheric pressure and temperature.The measurements made in all measuring functions are of very high accuracy and stability.Unification of the procedures in all measuring functions makes working easier.HOLD function to freeze the result on the display.Signalisation of the result stabilisation READY with symbol and sound.Possibility of sending to a PC a report of calibration - up to 10 last calibrations. In the pH measuring function:Calibration of the pH electrode: 1 to 5 points.Automatic detection of the buffers value entered by the user.Automatic correction of the standard solution value (NIST) along with the temperature changes.Possibility to store characteristics of 3 electrodes makes changing them easily.Automatic evaluation of the electrodes condition.Depending on the chosen electrode possible measurements in pure water, sewage, pastes, etc.

In the redox (mV) measuring function:Precise redox potential measurement (accuracy 0.1mV).Possibility to measure redox potential relatively to the entered or measured reference potentialVref.Possibility of automatic calculation of the redox reading in relation to the chloride/silver electrodeto the hydrogen electrode. In the conductivity measuring function:Wide measuring range enables measurements in ultra pure water, natural water as well as in very salty solutions.Newly introduced function is the resistivity measurement of the tested liquid.Salinity measurement in NaCl or KCl on the basis of the actual real characteristics.Defining the TDS (Total Dissolved Solids) based on conductivity measurement.6 sub-ranges switched automatically.In case of measurements of natural water with conductivity from 60 S/cm to 1 mS/cm the meter enables using non-linear temperature compensation. The parameters of this type of water is determined in norm EN27888:1999 and concerns surface waters, deep water and well water. Thissolution lowers the measurement error.The measurement accuracy of the ultra pure water with temperature compensation was increased by automatic adjustment of the coefficient depending on the temperature and kind of trace contaminations.Calibration by entering the constant K of the cell or in standard solutions in 1 to 5 points.Wide range of coefficient 0 to 10 % / C chosen depending on the measured solution.Possibility of changing the reference temperature.In set with high accuracy conductivity cell ECF-1. Measuring range 0500 mS/cm sufficient formeasurements in ultra pure water and high salt concentration samples. Metal electrodes are easyto clean and PVC body protects it against mechanical damage.Possibility of storing constant K of 3 conductivity cells.Automatic conversion of conductivity into salinity in NaCl or KCl on the basis of the actualcharacteristics and not a constant coefficient, what greatly increases accuracy.

In the oxygen measurement function:Galvanic dissolved oxygen sensor.Each of the models equipped with a function of automatic atmospheric pressure measurement with calculation of its influence on the oxygen measurement readout in mg/l.The meter with dissolved oxygen sensor are easy to operate.Calibration of the oxygen sensor in 1 or 2 points.Automatic or manual temperature compensation.Possibility of introducing the salinity value with automatic calculation of its influence on the result of oxygen measurement.The meter automatically counts the influence of salinity measured in the conductivity mode on the oxygen measurement result. Other features:* Automatic or manual temperature compensation.* Internal clock with date.* Internal data-logger enables storing up to 4000 measurements taken as single or in series with time, temperature and date.* The results and calibration data are stored in non-volatile memory.* Remembers the next calibration date.* USB output for connecting with PC.* The meter meets the GLP requirements.

The meter may be used for the field measurements as well as during accurate laboratory work. The meter is equipped with an easy-to-read back-light LCD display with brightness control. All functions are distinctive by very high accuracy and repeatability. Unification of the operating procedures in all measuring functions makes working trouble-free. Low weight and small size make working in the field easier.