

Dwyer 2015 Magnehelic Differential Pressure Gauge is a device used to measure the difference in pressure between two points in a system. It is a mechanical gauge that uses a diaphragm and a magnet to indicate the difference in pressure on a scale. This Differential Pressure Gauge has a circular dial face that displays the pressure measurement in inches of the water column (in. WC).
Applications: HVAC systems, clean room environments, and laboratory testing.


Dwyer 400 Air Velocity Meter offers double purpose comfort High precision instrument and easy-to-read scale. Can be used to equilibrate. Air conditioning systems, air pressure drop calculation, and ventilator monitoring, and Blower discharge and pressure to inlet. The Series 400 kits include a Pitot tube, a manometer, needed tubing and connectors, red gauge fluid, and case carrier.
Applications: Air balancing, Building commissioning


Dwyer 475-1-FM Mark III Handheld Digital Manometer tests positive, negative or differential pressures of air and natural gases, ranging from 0 to 20.00 “w.c. (4,982 kPa). Double push pads on the front panel switch on / off, auto-zero, and pressure sensor selection, enabling easy function with no set-up required. When used with the Dwyer Pitot tube, the Dwyer 4751FM can also be used.
Applications: Monitoring natural gas pressures on boilers and other combustion equipment, Air velocity monitoring, Field calibration of other instruments monitoring or troubleshooting HVAC systems


Dwyer 475-1-FM-AV Air Velocity Kit all-in-one kit is thin, lightweight, and simple to use. Requires no setup or scaling. Digital manometer reads from 0-20.00 “w.c. with F.S. precision of ±0.5 percent and small divisions to 0.01. Wide 1/2” LCD readings are simple to be seen in dimly lit areas and have a “low battery” alert.
Applications: Field calibration of other instruments, Monitoring or troubleshooting HVAC systems.


Dwyer 477AV-1 Handheld Digital Manometer measures pressure, flow, and velocity along with a number of other convenient features. The built-in air velocity and flow calculations provide accuracy and conserve time and error associated with manual calculations. Also featured on this unit are adjustable zero and span values for calibrating in the field, as well as a damping feature to compensate for the fluctuating readings.
Applications: Airflow monitoring, when used with a Dwyer® pitot tube
• Duct static pressure
• Commercial air balancing
• Building-zone pressure.

Dwyer 8901 Vane Thermo-Anemometer is a device designed to measure air velocity, volume, and temperature in industrial applications. This anemometer consists of a multifunction LCD screen that can simultaneously display air velocity and temperature or airflow and temperature in selectable units. This vane thermo-anemometer can store the information and transfer it to a PC via RS-232 communication.
Applications: HVAC monitoring, monitoring airflow equipment, exhaust monitoring, etc.


Dwyer A-396A Calibration Pump
₹85,020.00Dwyer A-396A Calibration Pump is a device that designed to calibrate the Pressure Gauges, Transmitters or to set the Pressure Switches. This Pressure Calibrator Generates the pressure upto 72 psig (5 Bar). This Dwyer Calibrator Pump is the best solution for Calibration Labs to calibrate the Pressure related devices.
Applications: Used in Calibration Labs to Calibrate the Pressure Gauges, Pressure Transmitters and Pressure Switches.


Dwyer AT22000 Flameproof Magnehelic® Differential Pressure Gauge is now available in a flame-proof enclosure with the new ATEX/IECEx approved AT22000 Series. This gage can indicate positive, negative, or differential pressures and is accurate within 2%.
Applications: Fan and blower pressures, filter resistance, Air velocity, Furnace draft, Liquid levels with bubbler systems, Pressure in fluid amplifier or fluidic systems


Dwyer CDT-2D40 Duct Mount Carbon Dioxide Transmitter accurately monitors the CO2 concentration in indoor environments to help achieve energy savings. For increasing sensor accuracy, a single-beam dual-wavelength nondispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied and unoccupied buildings against light source aging effects.
Application: Demand control ventilation in schools, office buildings, hospitals, and other indoor environments


Dwyer CDT-5D40 Carbon Dioxide Transmitter
₹15,263.99Dwyer CDT Series Carbon Dioxide and Temperature Transmitters measure the concentration and temperature of CO2 in schools, office buildings and other indoor environments to help achieve LEED ® certification. For improved sensor longevity, a single-beam dual-wavelength non-dispersive infrared (NDIR) sensor is used to automatically correct aging effects in both occupied and unoccupied buildings.
Applications: Demand control ventilation in schools, office buildings, hospitals, and other indoor environments


Dwyer CMT-200 Carbon Monoxide Transmitter is designed for Garage ventilation, and mechanical room monitoring. This CMT200 carbon monoxide transmitter provides a field of current and voltage output is selectable that is proportional to the gas concentration in underground parking garages, vehicle maintenance facilities, or mechanical room
Applications: Garage ventilation, Mechanical room monitoring, BAS