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  1. Transmitter Device 40 Products available
  2. Measuring Instruments & Equipment 23 Products available
  3. Measurement Gauges & Fittings 23 Products available
  4. Pressure Switches 22 Products available
  5. Manometers 15 Products available
  6. Medical Accessories 10 Products available
  7. Kitchenware And Cookware 10 Products available
  8. Anemometer 9 Products available
  9. Industrial Pump 6 Products available
  10. Process Control Systems & Equipment 6 Products available
  11. Others Products 234 Products available

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Leading Manufacturer, Supplier & Retailer of Dwyer differential Pressure Switch, A3000 Photohelic Pressure Switch, BDPA Adjustable Differential Pressure Alarm, MDA Miniature Adjustable Pressure Switch and Series FDT Flush Diaphragm Transmitter.

Dwyer Differential Pressure Switch

Dwyer Differential Pressure Switch
850 /Piece Get Latest Price
  • Material Plastic
  • Color Grey
  • Media Type Gas
  • Brand Name Honeywell, Schneider, Siemens
  • Type Differential Pressure Switch
  • Water column 20 Pa to 5000 Pa
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Hazardous Area Humidity Monitor

Hazardous Area Humidity Monitor
42,000 /Unit Get Latest Price
  • Accuracy 2.00%
  • Output Value 4-20mA
  • Temperature Range -40 to 140 degree F (-40 to 60 degree C)
  • Storage Temperature -40 to 80 degree C
  • Voltage range 0-10 V
  • Connection size 1/2 inch
  • Weight 1134 g
  • Response Time 15 sec
  • Housing Material Aluminium
  • RH Sensor Capacitance polymer
  • Conduit Connection Female NPT
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Digital Psychrometer

Digital Psychrometer
14,500 /Number Get Latest Price
  • Material Plastic
  • Features Sturdy structure, Durability, Low maintenance
  • Measures Temperature and Humidity
  • Accuracy 2%
  • Voltage range 0-10 V
  • Display type LCD display
  • Product type Psychrometer
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A3000 Photohelic Pressure Switch

A3000 Photohelic Pressure Switch
  • Product Applications Air Conditioner Systems, Clean Rooms, Fume Exhaust Systems
Photohelic SwitchGages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic switchgage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for lowhigh limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25" (0-6 mm) w.c. up to 30 psi (21 bar); single positive pressure to 6000 psig (413 bar). Photohelic Sensing - How It WorksIn typical applications, these Dwyer switchgages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. Relay-Transformer FeaturesA plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards.
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A3000 Photohelic Pressure Switch

A3000 Photohelic Pressure Switch
  • Product Applications Air Conditioner Systems, Fume Exhaust Systems, Clean Rooms
Photohelic SwitchGages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic switchgage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for lowhigh limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25" (0-6 mm) w.c. up to 30 psi (21 bar); single positive pressure to 6000 psig (413 bar). Photohelic Sensing - How It WorksIn typical applications, these Dwyer switchgages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. Relay-Transformer FeaturesA plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards.
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RSM Room Status Monitor

RSM Room Status Monitor
  • Product Applications Hospital Isolation Wards, Pharmaceutical, Manufacturing, Cleanrooms, Animal Facilities
The Series RSM Room Status Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. The Series RSM can be configured to monitor positive or negative pressure in protected environments and hospital isolation rooms per CDC guidelines. The RSM is a complete system that includes a backlit RGB LCD display with a graphic user interface which enables access to pressure, security, calibration, and alarm setup. The touch-screen displays menus that guide the user through setup, as well as setting up password protection. Red and green LED's and a local audible alarm (with time delay feature) alert personnel to system status. The RSM has a NEMA 1 (IP20) rated fire retardant plastic for indoor applications. True differential pressure is displayed with a resolution of 0.001 in w.c. The very low pressure capacitance is dead ended and avoids the potential for cross contamination of the room and reference space as well as eliminating drift that results from fouling of flow based sensors, which by nature have a flow path connecting the protected and reference spaces. Additionally, there are two levels of password protection available as well as optional BACnet MSTP communication. A calibration certificate is provided with every unit.
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DL7 Differential Pressure Data Logger

DL7 Differential Pressure Data Logger
Monitor and Record low differential pressures and temperature with the model DL7 Differential Pressure Data Logger. Unit includes an onboard thermistor for ambient temperature measurement. Sampling rates are user selectable from 0.04 seconds to 8 hours with First-in first-out or Fill-then-stop sampling options. Loggers can store up to 21, 500 readings and operate totally independently from any external power supply with built-in lithium battery. Use Model DL200 Windows software (sold separately) to quickly program the logger or upload data to a computer. The series DL7 logger is ideal for monitoring air duct velocity, testing and balancing HVAC systems, or verifying room pressure.
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Series BYDS Bypass Damper Switch

Series BYDS Bypass Damper Switch
The Series BYDS Bypass Damper Switch is designed to control motorized bypass dampers. As individual zone dampers open and close, the system static pressure will rise and fall. In order to maintain proper airflow and static pressure through the HVAC system, a bypass system incorporating a floating type motorized damper and a static pressure control should be incorporated. A typical onoff pressure switch cannot operate in this application due to the high cycle rate that would result, eventually causing contact burnout. The BYDS static pressure control is equipped with a solid-state switching and timing circuit to enhance operation and improve long-term reliability in this demanding application. CONTROL OPERATIONThe BYDS Bypass Damper Switch is designed for use with a three wire floating point damper actuator used to control the static pressure on zone control systems requiring motorized bypass dampers. A bypass damper, bypasses air from the discharge air side of the HVAC unit back in the return air side. The air flow is modulated in order to maintain a constant static pressure in the system as individual zone dampers open and close. The static pressure control is equipped with solid-state switching which dramatically increases the life of the control. On an increase in static pressure the BYDS will send 24 volts out and start the actuator to drive open. When the static pressure reaches set-point the actuator will stop. After a ten second delay the actuator will start to drive the damper closed if there has not been an increase in static pressure. A green LED indicates when the damper is in the open position or being driven open. A 24 VAC transformer is required to power the BYDS control and damper actuator. The unit includes tubing and two static pressure probes.
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BDPA Adjustable Differential Pressure Alarm

BDPA Adjustable Differential Pressure Alarm
The Series BDPA Adjustable Differential Pressure Alarm with built-in audible and visual set point indication is designed for overpressure, vacuum, and differential pressure applications. The scaled adjustment knob allows changes to the switching pressure to be made without a pressure gage. The BDPA is available with settings from 0.08" w.c. (20 Pa) to 20" w.c. (5000 Pa). The silicone diaphragm and PA 6.6 body make the Series BDPA perfect for use with air and other noncombustible gases. The Series BDPA Adjustable Differential Pressure Alarms offer a versatile range of configurations allowing utilization of their many features. The BDPA can be powered by battery or 24 VDCVAC line power. If connecting line power, the battery can act as back-up power in case of power outage. When set point threshold is reached, a local loud audible buzzer and bright LED will indicate periodically notifying of set point activation. An SPDT contact may also be wired to send a signal remotely to a DDC or building management system. A snooze button located through an opening in the cover can be pressed by the user to manually disengage the audible and visual indication until a maintenance operation is performed. If the instrument is mounted where it is difficult to access, a remote contact may be connected allowing the user to deactivate the buzzer and LED at the remote contact location. The Series BDPA Differential Pressure Alarm's great functional versatility makes it perfect for filter, fan, and ventilation applications or any retrofit job where installing electrical wiring proves cost-prohibitive. Note: For a 12" npt connection, use the 12" conduit fitting adapter (A-483).
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MDA Miniature Adjustable Pressure Switch

MDA Miniature Adjustable Pressure Switch
Sense differential pressure with the Series MDA Miniature Adjustable Pressure Switch. The switch features field adjustable set point and gold inlay contacts. Air or other compatible fluids can be used on the "high side". The lightweight and compact size make the MDA ideal for any application with space constraints. Applications include industrial, HVAC, pump and motor control, medical, automotive, pools and spas.
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Series DSGT Digital Indicating Transmitter

Series DSGT Digital Indicating Transmitter
Series DSGT Digital Indicating Transmitter is a versatile multi-function process gage that features an excellent 0.25% full scale accuracy. This all-in-one digital gage package is designed to reduce installation costs, instrument cost, and save space where an application requires a gage, transmitter, and switches. The Series DSGT gage comes standards with a loop-powered 4-20 mA transmitter output and is offered with one or two optional SPDT switches. The Series DSGT gage is housed in a durable fiberglass reinforced thermoplastic case that is designed to meet NEMA 4 (IP65) requirements. The gage features a menu-driven display for easy customization. User selectable features include 12 engineering units of measure, password protected calibration and disable functions, as well as an adjustable bar graph and updatedampening rates.
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Series 672 Low Pressure Transducer

Series 672 Low Pressure Transducer
The Series 672 Low Pressure Transducer is a perfect solution to any application where a very accurate low pressure transducer is necessary. Using variable capacitance technology, the Series 672 is designed to measure pressures as low as 10" w.c. up to 400" w.c., very low ranges for a single connection pressure transducer. The 672 also features a 0.25% F.S. accuracy. Use the Series 672 in liquid level, flood warning, waste water, clean room, and open channel flow applications.
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Series FDT Flush Diaphragm Transmitter

Series FDT Flush Diaphragm Transmitter
The Series FDT Flush Diaphragm Transmitter is designed for highly cyclical conditions. Flush sensor feature prevents any potential inaccuracies due to build-up or blockage which is a typical problem found in most non-flush transmitter sensors. Units have a non-oil filled sensor element that provides resistance to temperature fluctuations. Manufactured from a solid piece of steel, the sensing diaphragm can withstand the most abrasivecyclical applications. Series FDT transmitters perform well in high cyclical environments with the presence of water-hammering or spiking. Flush feature greatly reduces chance of leakage. Tough materials allow the unit to withstand harsh process conditions. Advanced manufacturing techniques, extreme environmental burn-in, and thorough residual stress relieving procedures ensure unit will maintain its high performance standard over time.
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1640 Floating Contact Null Switch

1640 Floating Contact Null Switch
The unique electric switch design in the 1640 is another Dwyer Instrument, Inc. innovation. The Dwyer Model 1640 Differential Pressure Switch resembles the Series 1630 switches. However, the Model 1640 is equipped with a single pole, double throw floating contact switch (not snap acting) so it functions as a null switch. Drawing shows the switching action schematically. As the diaphragm moves in response to pressure changes, it moves the floating contact to cause switching action at two preset points with no switching action between these points. The "high" circuit will be closed when rising pressure differential reaches the preset level. The "low" circuit will be closed when falling pressure differential reaches the preset level. A typical example of usage is to position motorized dampers when static pressure in a duct system reaches a desired maximum and reposition the dampers when the static pressure falls to a pre-established minimum. By using a Pitot tube sensing element the Model 1640 switch can serve in the same way to control air velocity and maintain a constant volume of air in a supply duct. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES
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Series 1620 Dual Pressure Switch

Series 1620 Dual Pressure Switch
Our old faithful switch design is still best where highest precision combined with diaphragm sealed leak proof construction and mounting simplicity are required. Model 1626 and 1627 differential pressure switches are identical in design and construction except that Model 1626 has a single electric switch and Model 1627 has dual electric switches. Model 1627 can therefore provide dual control when required. It can be set to open or close two independent electrical circuits, each preset for its own actuation pressure. Both units have diaphragm sealed motion take outs providing maximum protection against leakage. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.
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Series SA1100 Diaphragm Operated Pressure Switch

Series SA1100 Diaphragm Operated Pressure Switch
  • Applications Chemical, petroleum, food and drug processing industries. Used indoor, outdoor or in explosion-proof area.
Weatherproof and Explosion-Proof in One Economical EnclosureExtremely rugged construction assures excellent reliability in chemical, petroleum and industrial plants. New design also provides burst pressure protection to 3000 psi (206 bar). The rolling diaphragm design maintains a constant effective area to minimize friction. This results in a minimum deadband as low as 5% of full scale. Since many applications require higher deadbands, the SA1100 includes a separate adjustment of this when necessary. A pump being used to control liquid level in a tank would be a typical situation where this feature would be important. Both setpoint and deadband adjustments are protected, yet clearly visible behind a clear polycarbonate window and are fully isolated from the electrical components for additional safety. A 716" open-end wrench is the only tool required to change settings. Terminal blocks are provided for switch wiring connections and both internal and external ground screws are included. Standard housing is weatherproof to NEMA standards 1 through 4X and 13; explosion-proof to NEMA 7, Class I, Groups B, C & D; NEMA 9, Class II, Groups E, F & G. Optional construction adds drain to meet NEMA 3R IP54.
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DS Bourdon Tube Pressure Switch

DS Bourdon Tube Pressure Switch
Customers tell us that this is the best pressure switch made. The Mercoid D Series is one of the world's broadest lines of pressure switches. Whatever your application might be, it is most probable it can be fully satisfied with a D Series pressure switch. The D Series has extremely high sensitivity and great repeatability. The DA Models are equipped with two external adjustments, one for setting high pressure operating point, the other for setting low pressure operating point. Deadband, the difference between high and low set points, is adjustable over the full scale. The DS Models are equipped with a single external adjustment for setting operating point only. The deadband is fixed at a factory setting and cannot be altered in the field. For switches choose between the snap action switch, hermetically sealed snap action switch and hermetically sealed mercury switch.
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1000W Weatherproof Diaphragm Operated Pressure Switch

1000W Weatherproof Diaphragm Operated Pressure Switch
Extremely rugged construction provides excellent reliability in chemical, petroleum and industrial plants. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. new design also provides high overpressure protection. Weatherproof housing is standard.
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1000E Explosion-Proof Diaphragm Operated Pressure Switch

1000E Explosion-Proof Diaphragm Operated Pressure Switch
Same rugged construction as used in Series 1000W plus explosion-proof design are combined in this new unit. UL listed for Class I, Groups A, B, C and D; Class II, Groups E, F and G. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. high over-pressure protection and vibration resistance are also featured.
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H2 Dual-Action Explosion-proof Pressure Switch

H2 Dual-Action Explosion-proof Pressure Switch
Explosion-proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E, F & G. The H2 is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The design consists of two concentric pistons operated by a single diaphragm with one pressure chamber. Each piston actuates a separate switch independent of the other. The switches may be adjusted to operate together, at opposite ends of the range or at two intermediate set points. The threaded top is removed to field adjust or service switches without disturbing electrical or pressure connections. The Duotect switch is explosion-proof and weatherproof. It can be mounted in any position and is not affected by vibration.
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A1F Low Cost OEM Pressure Switch

A1F Low Cost OEM Pressure Switch
Low cost and precision made, the A1F Pressure Switch is ideal for OEM industrial applications. Wetted materials of 316 SS and fluorocarbon ensure great chemical compatibility with a wide range of process media. The open case style is perfect for panel mounting applications like pump skids. Field installable weatherproof enclosure is available in polycarbonate offering a low cost weatherproof switch. Superior 15 A contact allows direct control of motors or pumps without the use of external relays, a true cost savings. Features include a convenient indicating scale for quick and easy field adjustment.
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A1VS Economical Pressure Switch

A1VS Economical Pressure Switch
Series A1PSA1VS Economical Pressure Switches are designed with a 15 Amp SPDT switch for direct control of pumps and motors. Available in pressure, vacuum, or compound ranges, the switches offer a field adjustable set point. Easily adjust the switch by aligning the top of the self locking adjusting nut with the desired setting indicated on the adjacent range scale. Connection is 14" male NPT for quick installation and can be mounted in any position.
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AVS Adjustable Pressure Switch

AVS Adjustable Pressure Switch
Miniature Series APSAVS Adjustable Switches offer reliable switching for pressurevacuum alarm, shutdown or control. The units are readily adjustable throughout their range using the locking adjusting ring and indicating pointer. The body is constructed of stainless steel for durability in harsh environments. Switches include 12" (30 cm) wire leads sealed with epoxy for additional protection.
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A6 Durable Pressure Switch

A6 Durable Pressure Switch
Series A6 Durable Pressure Switches have been specifically designed to stand up to extended duty applications. These switches are constructed with a polyimide film diaphragm and are compatible with a variety of fluids. For ease of installation, the switches come with a 14" male NPT process connection and can be mounted in any orientation. The Series A6 pressure switches are compact and have great setpoint integrity, and feature simple, easy set-point field adjustment.
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A9 Snap-Action Pressure Switch

A9 Snap-Action Pressure Switch
Series A9 Pressure Switches are designed for controlling pressure with higher current capacity. These switches are used widely in steam cleaners, steam irons, and other pressure control systems. It provides SPDT contact and Series A9 Pressure Switches utilize high-quality miniature snap-action switches. The switch is diaphragm operated, boasting a high temperature rating and compact size.
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A2 Subminiature Pressure Switch

A2 Subminiature Pressure Switch
Designed for OEM applications, the Series A2 is economical and is equipped with high proof pressure capabilities for demanding applications. The A2 is available with either spade terminals or flying leads (submersible). Switches with spade terminals can be easily adjusted in the field.
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CD Diaphragm Pressure Switch

CD Diaphragm Pressure Switch
Series CS and CD combine advanced design and precision construction in a small size. Unit is ideal for instrument panels, small compressors and general industrial applications. Visible set point and easy to wire SPDT snap switch reduce installation time. Operates in any position and is vibration resistant.
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AP Diaphragm Operated Pressure Switch

AP Diaphragm Operated Pressure Switch
Reliable and convenient, series AP pressure switch is a compact for instrument air or other low pressure applications. Visible set point and external adjustment add convenience. Used on air, non-corrosive gas or liquid service compatible with wetted parts. Unit also available in weatherproof and explosion-proof housing.
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A7 Mini Pressure Switch

A7 Mini Pressure Switch
Series A7 Mini Pressure Switches have been designed for high current applications. These switches are small and inexpensive, making them ideal for OEM use. The Series A7 switches utilize a high-quality snap-action switch, which is diaphragm actuated. They have a silicone diaphragm and nylon housing. The A7 switches are compact and lightweight which adds to the ease of installation. The set point must be factory set, but a broad operating range makes them great for a variety of applications. Models are built to your specification.Set point is factory preset and is not field adjustable.Minimum quantity order is 100.
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DLP Temperature Data Logger

DLP Temperature Data Logger
The Series DLP Data Logger can record pressure and temperature. The 14" NPT fitting comes standard and allows the logger to be adapted to almost any pressure fitting. The internal temperature sensor provides accurate temperature measurements without the need of a separate temperature recorder, and many of the models provide a choice between measuring pressure in psia or psig. The DLP can easily be started and stopped from a PC or delayed to start up to six months in advance. The battery-powered data logger can store over 16, 000 measurements per channel, and the easy to use DL700 software makes retrieving data simple.
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Series 100 AV Durablock Air Velocity Gage Kit

Series 100 AV Durablock Air Velocity Gage Kit

Designed to measure air velocity, static pressure, vacuum or differential pressure, where the additional range of the 400 Series gages is not required. Series 100 Gages offer superb accuracy combined with portability. The Dwyer Durablock precision machined solid acrylic plastic construction, the wells and inclined bore are machined to tolerances of .0002". Complete Air Velocity Kits Include:Dwyer Inclined Manometer, stainless steel Pitot tube (12" with Models 102 AV & 115 AV), two 9' lengths of rubber tubing with connectors, additional red gage fluid, instruction card H-7, Bulletin H-11 and magnetic mounting clips, air velocity calculator slide rule and carrying case.
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Series 160E Ellipsoidal Tip Pitot Tube

Series 160E Ellipsoidal Tip Pitot Tube
Series 160E Pitot Tubes are widely used in the U.K. and Europe for applications demanding high accuracy when measuring the flow of air or other compatible gases. Precision crafted tip configuration allows air to pass smoothly with minimum turbulence for consistent, reliable readings. Exterior indicator arm is aligned parallel to the 5 in. (13 cm) sensing tip so you always know that unit is properly positioned inside duct. Sliding depth indicators grip firmly to ensure uniform insertion - critical when making multiple measurements as part of a complete traverse; the best way to determine average velocity. Total and static pressure taps are 14" (6 mm), permanently silver soldered to the connection block, leak-proof and durable.
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Model 160G Averaging Air Flow Grid

Model 160G Averaging Air Flow Grid
The Model 160G Averaging Air Flow Grid is a precision sensing instrument used to measure face air velocity on grills, diffusers, registers, exhaust hoods, coils, filters, dampers and similar restrictions. With its 16 sensing points, the 160G Air Flow Grid provides an average flow sensing area across its 16.5" length and width. Included color coded tubing connects to the integral barbed fittings, providing a differential pressure signal to a gage or manometer where the readings can be converted into a velocity or flow reading. The 160G comes standard with an 18" handle and two 17" extensions offering a maximum reach of approximately 52". The uniquely designed swivel and tightening nut allows the user to position the sensing grid at any angle for ease of use in hard to reach locations. Store in the separate UHH-C2 hard carrying case with foam cut-outs perfectly sized for the 160G, as well as various other instruments in the AQTI Air Quality Test Instruments line.
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1205B Handheld CO2 Gas Analyzer

1205B Handheld CO2 Gas Analyzer
The Model 1205B Gas Analyzer accurately measures the concentration of carbon monoxide (CO) and carbon dioxide (CO2) in a duct or space. The Gas Analyzer displays the measurement on a two line digital LCD display with backlight. The units memory stores up to 255 sets of readings that are logged manually or auto-logged with 1 to 10 minute intervals. Besides measurement recording, Model 1205B can provide a summary of average and maximum levels reached during recording. Results then can be printed via an optional infrared printer. Model 1205B includes batteries, 120V power supply, protective rubber boot with integral magnet, sampling probe, and a canvas carrying case.
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Model 1207A Handheld Flue Gas Combustion Analyzer

Model 1207A Handheld Flue Gas Combustion Analyzer
The Versatile Model 1207A Handheld Flue Gas Combustion Analyzer makes adjusting boilers for optimum efficiency quicker and easier. With the large LCD display, users can monitor four parameters simultaneously and change the parameters shown using the rotary dial selection switch. For extra protection, the analyzer comes standard with a protective boot and magnetic back. In order to track the measurements, the 1207A can store up to 255 time stamped test sets in memory and can output measurements to a serial printer. The 1207A comes preprogrammed for Natural Gas, Light Oil, Propane, Butane, LPG, and Wood Pellets. Along with analyzing combustion measurements, the analyzer can be used as a COCO2 indicator, pressure manometer, or thermocouple thermometer.
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Model 920 Smoke Gage Kit

Model 920 Smoke Gage Kit
Easy to use Smoke Gage Kit enables you to quickly balance maximum CO2 with minimum smoke for clean, efficient combustion. Simply take and actual sample of the smoke being tested and compare it to the standards on the Smoke Chart included. Just 10 full strokes of the pump produce and accurate test sample. Complete testing instructions are included.
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SMC-1 Sound Calibrator

SMC-1 Sound Calibrator
Model SMC-1 Sound Calibrator is ideal for setting standard noise levels at 94 dB and 114 dB. The SMC-1 has an output frequency of 1 kHz, 4%. This unit functions best when environment conditions have a temperature of 68F (20C), relative humidity of 65%, and an atmospheric pressure of 29.9" Hg (1013 mbar). The SMC-1 features a measuring accuracy of 0.5 dB, a low battery indicator, and a 12" microphone adapter. This calibrator has a compact design that allows the user to conveniently operate and store the product. At 10 oz (283 g) including the battery, the SMC-1 is also extremely lightweight. Each unit includes carrying case, battery, and instruction manual. This calibrator is ideal for calibrating sound meters such as the Dwyer Series SM-100.
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Series TIC Thermal Imaging Camera

Series TIC Thermal Imaging Camera
  • Applications Heat contrasts to prevent plant equipment failures., Detects air leaks in buildings
The Series TIC Thermal Imaging Camera allows users to see heat contrasts to prevent plant equipment failures, detect air leaks in buildings, and many more applications. Infrared radiation is given off by objects according to how warm they are, and the camera translates the measured levels into visual light on the bright 2.5" 160 x 120 resolution LCD. For increased differentiation among temperatures, the camera can automatically adjust the color band for a narrower range of temperatures throughout the 4 to 482F ( -20 to 250C) temperature range of the camera. Besides taking spot measurements, the camera can also be set for isothermal, area, or profile analysis. All cameras include a Li-Ion battery, battery charger, docking station, SD memory card, SD memory card reader, sun shield, lens cap, video cable, standard reporting software, and a calibration report. A Bluetooth earphone and USB cable are also included in TIC-30 units for making voice annotations and real time recording. Up to 9 movable temperature spots can be selected to get specific temperature measurements of objects on the display. On the TIC-20 and TIC-30, there are flash, visual light camera, and a laser pointer to help identify the objects in the picture better. The visual image can be blended with the thermal image for better illustration of where the hot or cold spots are in the image.
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Voltage Signal Generator

Voltage Signal Generator
The pocket size CSG Current and Voltage Signal Generator is an ideal tool for troubleshooting transmitters, transducers, motors, and actuators. The unit generates a 0 to 10 VDC signal in increments of 1 volt or a 0 to 20 mA signal in increments of 1 mA. The Model CSG features a large LCD display with a blue backlight for use in dimly lit areas. The Model CSG continuously ramps the output using user selected minimum, maximum, and ramp interval timing parameters. Units are furnished with a battery, 120 VAC plug-in power supply, test leads with alligator clips, carrying case, and instruction manual.
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Series TAC3 Pocket Tachometer

Series TAC3 Pocket Tachometer
The Series TAC3 Pocket Tachometer measures and displays rotational speed of saw blades, grinders, engines, motors, and conveyor belts. The unique ergonomic design provides direct line-of-sight viewing of display and target. Easy-to-read 5-digit alphanumeric dual LCD also displays on-target, continuous measurement, laser and low batter indication. Measurements of up to 999, 999 can be viewed with the onscreen multiplier. The Model TAC3 is a 32 function tachometerratemeter, totalizercounter, and timer. It is programmable to read in English or Metric units. An input socket accepts remote sensing devices and an output socket allows for pulse output to external indicating devices. The Model TAC3 can be tripod mounted and Locked-On for accurate and continuous operation. This tachometer also stores minimum, maximum, and last measurement in memory. Model TAC3K Kit comes with tachometer, plastic case, remote contact assembly, concave and convex contact tips, 3.9 in. (10 cm) circumference contact wheel, NIST certification, and 5 ft (1.5 m) of reflective tape. Optional TAC3-91 Remote Optical Sensor allows this unit to measure rps, rpm, or rph in hard to reach locations.
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Model A-396A Calibration Pump

Model A-396A Calibration Pump
Serves as pressure source to calibrate gages and transmitters or to set pressure switches. Use with manometer or other pressure standard. Includes volume adjuster enabling fine pressure control and bleed valve. Generates pressures from a fraction of an inch w.c. to 72 psig (5 bar). Includes barbed fitting, tee connector and three 36" lengths of vinyl tubing.
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Model A-350 Aspirator Bulb

Model A-350 Aspirator Bulb
  • Product Applications Calibration and leak check testing.
The Model A-350 Aspirator Bulb can be used to source pressure for calibration and leak checking tests. Simply squeeze the bulb after the tubing is connected to generate pressure. For applications such as our CO2 indicator, the aspirator bulb can be squeezed before inserting the tubing to draw a vacuum to pull the smoke or air from a duct or stack into the gage.
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Series MC Multi-Cal Pressure Calibrator

Series MC Multi-Cal Pressure Calibrator
  • Applications Clean Room ControlFilter Performance Monitoring, Draft Measurement, Airflow Measurement Control etc.
Series MC Portable Multi-Cal Pressure Calibrator performs a wide variety of simple and complex pressure based measurement, test, and calibration operations. Modular sensor design allows user to select pressure measurement range for application flexibility. Calibrator can accommodate up to two interchangeable pressure modules (sold separately below) in any combination of range or accuracy. Simultaneously display two separate measurements on the two line, alphanumeric display. Readings can be displayed in a choice of seven preprogrammed engineering units or any single user-defined unit. Calibrator features minmax recall, hilo alarm, percentage of full scale pressure readings, mAvoltage measurement, leak rate and pressure decay measurement, switch testing capabilities, including trip point and dead band, and velocityvolume flow rates. Quickly document calibration procedures using the data logging feature which stores up to 384 sets of pressure and timedate stamped measurements. Easily upload stored data to an IBM compatible computer via the RS232 port. Calibrators and modules include certification to NIST traceability - ideal as a secondary standard for calibrating pressure equipment. Multi-Cal Pressure Calibrator includes utility software, test leads, protection module, adjustable had strap, AC adapter, batteries, instruction manual, and hard carrying case. Multi-Cal Pressure Modules are interchangeable and available in a wide selection of pressure ranges and accuracies. Handheld calibrator accepts up to two pressure modules. Modules include NIST calibration certification.
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Model 670 Fume Hood Monitor

Model 670 Fume Hood Monitor
The Model 670 Fume Hood Monitor continuously senses air flow through the face of the fume hood, ensuring safe levels of fresh air are exhausting potentially hazardous fumes eliminating operator exposure. The 670 provides a highly accurate hot wire sensor to detect very low flows common on fume hoods. This fume hood monitor provides several key features such as simplified calibration and mounting, LED safe and alarm status indicators, audible alarm with temporary or permanent horn silence, relay alarm output, sash alarm input and an input for night set-back. The Model 670 comes with everything required to quickly install the unit including a mounting bracket, 24" of tubing for connecting to the inside of the hood wall and a 120 Volt AC power adapter.
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Series FAFM Fan Inlet Air Flow Measuring Probe

Series FAFM Fan Inlet Air Flow Measuring Probe
The Model FAFM Fan Inlet Air Flow Measuring Probes use evenly distributed total and static pressure measuring points to deliver an accurate measurement of flows in a fan inlet. The Air Flow Measuring Probes can be completely installed from outside of the fan making it ideal for when proper duct locations are unavailable. With its lightweight and durable construction in addition to its ease of installation, this product lends itself to being used in the HVAC industry. There are two versions of the model FAFM fan inlet air flow probes to choose from depending on the depth of the fan inlet. For fan inlets with depth less than 3-12" (8.89 cm): Please order a fan inlet probe with an "S" suffix. This probe has a diameter of .375" (.95 cm). It employs one total flow measuring tube and one static measuring tube. Each probe is covered with an extruded aluminum anodized coat. Each measuring tube has multiple sensing points. For fan inlets with depth greater than 3-12" (8.89 cm): Please order a fan inlet probe with a "D" suffix. This probe has a diameter of 3-12" (8.89 cm). It employs extruded aluminum anodized coated probes with both total and static sensors on each tube. Please Note: These are sold in sets of two. A set is necessary in order to ensure an accurate reading. No more than two air flow measurement probes will be needed to obtain an accurate reading.
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Series DAFM Duct Air Flow Measuring Probe

Series DAFM Duct Air Flow Measuring Probe
The Model DAFM Duct Air Flow Measuring Probe uses evenly distributed total and static pressure measuring points to deliver an accurate measurement of flows in a duct. The Air Flow Measuring Probe can be completely installed from outside of the duct making it very easy to install. With its lightweight and durable construction in addition to its ease of installation, this product lends itself to being used in the HVAC industry. These air flow measuring probes may be ordered for either round or rectangular ducts. In order to ensure accurate measurements you must determine the number of probes needed for your size duct. If the duct is rectangular, then consult the chart to determine appropriate quantity of probes.
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Series HS Humidity Switch

Series HS Humidity Switch
  • Product Applications Industrial Chillers, Environmental Chambers, Walk-ins and Freezers, Heat SealersBeer and Wine Chillers, Mug Frosters Etc.
The microprocessor based Series HS Humidity Switch provides control for humidifying or dehumidifying. Relative humidity, output status, and error messaging can be viewed on the bright green LED. The switch features 9 user defined parameters including setpoint, hysteresis, control type, cycle time, and probe adjustment. Access to programming parameters can be locked for security purposes using the password protection feature. The Series HS includes a fitting clip for panel mounting, gasket, rear terminal cover, and instruction manual.
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Series THC Temperature Switch

Series THC Temperature Switch
Simultaneously measure and control temperature and humidity with the Series THC TemperatureHumidity Switch. The unit offers a 3-digit red display for temperature indication and a 3-digit green display indicating humidity. The Series THC is equipped with four independent relays, two for temperature control and two relays for humidity control. The unit offers 61 programmable parameters for temperature and humidity control including set point, differential, directreverse acting, cycle time, alarm clock time, and decimal point adjustment. In the event of a probe error, the default operation of the relays can be set to open or close. The THC features error or alarm messaging and password protection. The THC TemperatureHumidity Switch accepts up to two temperature probe inputs (sold separately) and a humidity sensor. A humidity sensor with 0-1V, 0-3V (sold separately), or 4-20 mA output can be used with the Series THC.
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Series RHRS Outside Air Humidity Radiation Shield

Series RHRS Outside Air Humidity Radiation Shield
The Series RHRS Radiation Shield protects outside air humidity transmitters from rain and radiated heat. With the curved shape and color of the plates, air flow is able to move across the sensor to keep radiated temperatures from rooftops and surrounding surfaces from affecting humidity readings. For ease of installation, the Series RHRS has integral pipe mounting hardware which can be removed for surface mounting applications. The brackets on the Series RHRS are specifically designed to be installed on the Dwyer Series RHP outside air humidity transmitters with sintered filters. The pipe mounting bracket fits 34" to 1-12" iron pipe.
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Thermal Dispersion Flow Switch

Thermal Dispersion Flow Switch
  • calibrated 0.2 fps
The Series TDS Thermal Dispersion Flow Switch offers solid state flow detection of non-coating liquids for pump and process protection. SPDT output allows for interfacing with remote PLC or relay control device. The adjustable switch point is factory calibrated at 0.2 fps with LED indication of flow and calibration status. Units feature selectable NO or NC operation and are not damaged by over-ranging flow velocities.
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