Air Pressure Transmitters for Duct, Compressor and Environmental Monitoring

Air pressure transmitters for critical system monitoring. Ideal for HVAC duct pressure, industrial air compressors, and environmental pressure changes.

This range of air pressure transmitters provides precise and reliable measurement solutions, featuring industry-standard 4-20 mA current loop outputs for seamless integration into diverse control systems. These instruments are engineered for applications spanning environmental air pressure monitoring, ventilation duct analysis, air compressor regulation, air cleaning system efficiency, and pneumatic feed line integrity. With options including intrinsic safety approvals for hazardous environments, our transmitters are designed to meet the demanding requirements of industrial process control, HVAC optimization, and specialized applications like gas cylinder monitoring, ensuring operational safety and efficiency through accurate air pressure data.

DPS Low Differential Pressure Transmitter - Ultra low differential pressure transmitter for HVAC applications with 4-20mA current loop or amplified voltage output signal in pressure ranges from 0.1 mb up to 1 bar differential.
DPS200 HVAC Differential Pressure Transmitter - Differential air pressure sensor with a 10 volt or a 4-20mA output for building ventilation applications. Ranges from 0 to 6 mbar up to 0 to 1000 mbar.
DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor - The DPS 300 is a low range HVAC differential pressure sensor. The lowest possible pressure range is 0...100 pascals. 2 or 3 switchable pressure ranges, plus volts or current output are included with most standard configurations.
41X High Precision Low Range Pressure Transmitter - High precision pressure transmitter for measuring very low vented gauge reference or differential air pressures. Rangeable 4-20mA or 0-10 volt output.
DMP343 Low Range Pneumatic Pressure Sensor - DMP343 pneumatic pressure sensor for measuring very low range pressures on pneumatic control systems, heating, ventilation and air conditioning systems (HVAC) .
DS210 Combined Low Pressure Switch, Indicator and Sensor - Low range three in one pressure switch, pressure indicator and pressure sensor for use on pneumatics and HVAC applications.
IMPLR Low Range All Stainless Steel OEM Pressure Sensor - Low cost sensor for measuring small pressure ranges from 0-50 mbar (10 inH2O) to 0-1000 mbar (15 psi) of liquids or gases.
DMD341 Compact Differential Air Pressure Sensor - Small size dp sensor for measuring differential air pressure on HVAC, compress air and pneumatic control systems.
PrimAtü 10 Low Cost Low Range Differential Air Pressure Transducer - The PrimAtü 10 low cost low range differential air pressure transducer can detect and display both positive and negative differential pressure variations of very low low pressure ranges from 0.5 up to 1000 mbar/hPa, and output the pressure as a 4-20mA, 0-20mA or a 0-10Vdc analog output.

Find out more about Air Pressure Transmitters to determine which product options and capabilities will best meet your application requirements.

Air pressure transmitters incorporating a robust 4-20 mA current loop output are fundamental for precise and reliable measurement within a multitude of industrial and research settings. These devices are specifically engineered to monitor diverse air pressure parameters, ranging from subtle environmental or barometric pressure shifts critical for laboratory conditions or high-altitude applications, to the dynamic pressures found within ventilation ducts for optimizing airflow or detecting filter saturation. For industrial applications, they are indispensable for overseeing the operational pressures of air compressor systems, ensuring efficient load/unload cycles and system integrity. Their utility extends to specialized air cleaning equipment, where differential pressure readings across filter banks indicate maintenance requirements, and to pneumatic feed lines, guaranteeing consistent pressure for automated machinery and control systems.

The 4-20 mA output signal is particularly favored in these applications due to its inherent noise immunity, suitability for long-distance transmission without signal degradation, and its capability for loop-powered operation, simplifying wiring and reducing installation costs. When selecting an air pressure transmitter, consideration must be given to the specific pressure type being measured, whether it’s gauge pressure for compressors and pneumatic lines, differential pressure for airflow and filter monitoring in HVAC systems or cleanrooms, or absolute pressure for sensitive environmental measurements. For instance, in cleanroom environments or isolation rooms, minute differential air pressures are critical for maintaining environmental integrity, and transmitters with high accuracy at low pressure ranges are paramount.

Furthermore, for installations in potentially hazardous environments, such as those involving flammable gases, vapors, or combustible dust where pneumatic systems are often preferred for safety, air pressure transmitters with optional intrinsic safety (IS) approvals are available. These IS-certified transmitters are designed to limit electrical and thermal energy to prevent ignition, making them suitable for process control and monitoring in chemical plants, refineries, or specialized manufacturing facilities that rely on pneumatic conveying or control. The robust construction and reliable electronic outputs of these transmitters also ensure compatibility with PLCs, SCADA systems, and dedicated process controllers for seamless integration into overarching control strategies for HVAC system optimization, industrial air system management, and the safe monitoring of pressurized gas cylinders used in various processes or as backup supplies. Careful selection will also involve considering wetted parts material for compatibility with the air or gas being measured, especially in applications with trace contaminants or high humidity.