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Dwyer Instruments has been offering innovative sensors, control equipment and instrumentation solutions for application in HVAC industry, water and wastewater management, and valve automation systems. The company's line of products includes thermometers, transmitters, transducers, pressure gauges, differential pressure and temperature switches, panel meters, flow indicators, manometers and flow meters.
Dwyer manometers are the precision instruments designed to measure the difference between two pressures. These CE approved instruments are suitable for measuring both single and differential pressure. You can also use these manometers for measuring duct static pressure and field calibration of other instruments. Dwyer Instruments flow meters are ideal for measuring flow rate of liquids, gases or air in heat exchangers, coolant lines, water treatment plants and lubrication systems. They can withstand a maximum pressure of 300 psi and measure flow rate up to 30 gpm. Choose from a wide range of these pressure and temperature measuring instruments and other company products such as environmental meters, pitot tubes and level switches, on Raptor Supplies, one of the authorised Dwyer Instruments distributors.

  • Air Velocity Meters and Anemometers
Includes air velocity meters, anemometers and wind speed indicators used to measure wind speed and monitor air flow
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Products (5)
  • Air Velocity Monitor Accessories
Includes air flow probes, replacement vanes, pressure anemometer, temperature and humidity probes, wireless mobile gateways and air flow grid sensors for use with wind meters, vaneometers and air velocity transmitters
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Products (14)
  • Air Velocity Transmitters
Designed to provide precise velocity measurements at different flow rates and temperatures. Can operate at temperatures ranging from -40 to 212 degrees F and have a quick response time of 1.5 seconds
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Products (10)
  • Analog Panel Mount Thermometers
BTPM Series panel mount bimetal thermometers suitable for applications in chemical processing, HVAC and automotive industries. Feature a 3 inch dial with a scratch-proof glass and a stainless-steel housing and can be easily mounted on most instrument panels. Can measure temperatures ranging from -40 to 392 degrees F
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Products (6)
  • Dial Thermometers
Can be used to read temperature at point of measurement and also at remote location with the help of capillary tubing. Ideal for monitoring boiler water and treatment plant temperatures and for sanitary process applications
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Products (279)
  • Differential Pressure Gauge Accessories
Includes high-quality replacement parts such as static pressure fittings, shielded cables, split flange assemblies, surface mount brackets, mounting glands and portable adaptor kits to ensure optimal performance of differential pressure gauges
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Products (20)
  • Differential Pressure Gauges
Shock- and vibration-resistant pressure gauges used to measure the pressure difference between two given inputs in a system. Feature die-cast aluminium body construction and display pressure difference accurate to + / - 4 %
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Products (53)
  • Digital Panel Meters
High-precision digital panel meters featuring a 3-digit LED or 4-digit LCD to display voltage, pressure, current and resistance
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Products (33)
  • Digital Pressure and Vacuum Gauges
Suitable for level, pump, process and compressor control applications. Feature an NPT or smooth barb connection, a 4-digit LCD screen and stainless-steel wetted parts, and come in an ABS / glass filled plastic case
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Products (32)
  • Digital Temperature Switches
Used for monitoring and controlling temperature in heating and cooling applications. Can be found installed in refrigerators, chillers and food service equipment, and come equipped with thermistor-style / thermocouple sensors
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Products (12)
  • Duct Pressure Switches
Explosion-proof and ATEX approved air / differential Dwyer pressure switches used for monitoring industrial cooling-air circuits and flows in ventilation ducts. Feature a silicon diaphragm and have a maximum operating pressure of 1.45 psi (10 kPa)
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Products (6)
  • Environmental Meters
Used to measure humidity, temperature, air velocity, air flow and sound. Provide real-time information and feature a 4-digit LCD display to show both current and average readings
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Products (1)
  • Flow Switches
Brass-made flow and level switches used to monitor and control the flow of liquids, gases and steam. Have an electrical contact output at a specific flow rate
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Products (2)
  • Indicating Transmitters
Designed to provide electronic control and visual monitoring of low-differential pressure. Feature a Magnehelic gage mechanical design and Series 600 transmitter technology
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Products (54)
  • Manometer Accessories
Includes digital manometer stands and other mounting accessories, such as brackets and magnet assemblies
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Products (2)
  • Manometers
CE-approved U-tube manometers used to measure positive, negative and differential pressures up to 100 psi. Columns have an outer diameter of 0.34 inch and feature a durable plastic construction.
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Products (1)
  • Micromanometers
Designed to determine both differential and static pressure readings, and to measure flow rate and air velocity. Powered by a 9V battery and can measure up to 200 psig pressure
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Products (19)
  • Pitot Tubes
Single-point sensors designed to measure the flow velocity of liquids, gases or air running through ducts, pipes or tubing. Most of the models feature stainless steel construction and are available in different connection types and sizes
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Products (51)
  • Powder Bulk Level Control Accessories
Full / half coupling flanges featuring carbon steel / stainless steel construction and banana / L / tri paddles having minimum bulk density ranging from 5 to 70 lb per cubic foot
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Products (8)
  • Powder Bulk Level Controls
High-quality SPDT / DPDT electromechanical level switches used for level monitoring of bulk materials. Feature a NEMA 4X enclosure and NPT connections, and offered in capacitive, tuning fork and paddle variants
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Products (6)
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