Oxygen, Dissolved Range0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation
Altitude Compensation-500 to 4000 m (with 100 m resolution)
Salinity (% NaCl) Accuracy±1% of reading (@25ºC/77ºF)
Salinity (PSU) Calibrationthrough EC calibration
Temperature Resolution0.1 °C, 0.1 °F
Salinity Accuracy (ppt)±1% of reading (@25ºC/77ºF)
Salinity Range0.0 to 80.0 g/L***
Salinity (PSU) Resolution0.01 PSU
Salinity Resolution (ppt)0.01 g/L
Salinity Compensation0 to 40 g/L (with 1 g/L resolution)
Temperature Correction Coefficient0.00 to 6.00%/°C (for EC and TDS only), default value is 1.90%/°C
Salinity (% NaCl) Calibration1 point with HI 7037L 100% NaCl sea water standard
Battery Type/LifeBuilt-in rechargeable battery with up to 8 hours of continuous use
Temperature Range-20.0 to 120.0 ºC, -4.0 to 248.0 °F
edge® is packed with many cutting edge features to ensure accuracy and usability.
Digital Electrodes - edge electrodes are highly advanced, featuring a built-in microchip that stores calibration information that is automatically retrieved by edge once the electrode is plugged in. These digital electrodes also feature an easy to plug in 3.5 mm connector so you never have to worry about the right angle or aligning pins.
Sensor Check - When used with Hanna’s pH electrodes equipped with a matching pin, edge constantly checks the impedance of the pH measuring electrode to notify you in real time in the event of glass breakage. During calibration, Sensor Check checks the state of the junction. The reference junction is also evaluated and reported on the display.
3.5mm Probe Input - Plugging an electrode in has never been simpler; no alignments, no broken pins, just connect the 3.5 mm plug and get started.
edge® is incredibly thin and weighs only 8.8 oz., has an 8 hour battery life, and dual USB inputs.
Two USB Ports - edge includes one standard USB for exporting data with a flash drive and a second micro USB port for you to connect to a computer for file export and for charging your edge when the cradle is not available.
Data Logging - edge allows you to store up to 1000 log records of data. Data sets include readings, GLP data, date and time.
Two Operating Modes - edge can be used in Extended or Basic Operating Modes. Extended Mode enables all features available while the Basic Mode reduces the amount of features to a very simple operation. For example, in extended mode edge offers 5 point calibration with 2 custom buffers while in basic mode calibration can only be performed to 3 points with 5 preprogrammed buffers.
EC Range - 0.00 to 29.99 μS/cm, 30.0 to 299.9 μS/cm, 300 to 2999 μS/cm, 3.00 to 29.99 mS/cm, 30.0 to 200.0 mS/cm, up to 500.0 mS/cm (absolute EC)**
EC Calibration - 1 point offset calibration (0.00 μS/cm in air), 1 point slope calibration in EC standard 84 μS/cm, 1413 μS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm
TDS Range - 0.00 to 14.99 ppm (mg/L), 15.0 to 149.9 ppm (mg/L), 150 to 1499 ppm (mg/L), 1.50 to 14.99 g/L, 15.0 to 100.0 g/L, up to 400.0 g/L (absolute TDS)**, with 0.80 conversion factor