HVAC Pressure Sensors

HVAC pressure sensors are essential for maintaining optimal performance and energy efficiency in heating, ventilation, and air conditioning systems. These sensors monitor air filter status, duct static pressure, and pressure differentials to ensure proper airflow and system operation.

• 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 Low Range Digital Output Pressure Sensor - Low pressure sensor with a USB, RS232 or RS485 digital output interface for measuring low range gauge or differential pressures from 10 to 300 mbar.
• 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.

• 1 hPa Positive Room Pressure Sensor, Switch & Display
• R134A Coolant Pressure Transducer For Automotive Air Conditioning
• HVAC chilled water wireless pressure monitoring in BMS
• Wireless environmental sensors with custom MQTT SCADA system for energy management IoT platform
• Wireless differential pressure monitoring for room overpressure using a modbus gateway
• Low-range air pressure monitoring in raised floor plenums using a wireless SNMP gateway
• Monitoring data center positive pressure with a low-range differential transducer
• Measuring HVAC plenum and sub-floor air pressure in data centers
• Monitoring hot and cold aisle containment in datacenters using a differential pressure transmitter
• Monitoring AHU cooling coil efficiency with a DP transmitter
• 20 Pa DP range 0-10V output air pressure sensor for building management use
• Negative room pressure monitor and logger for multiple zones

• Draft Pressure Sensors - Find low-pressure transducers & transmitters (inWC, mbar, Pa) designed for draft measurement in air handling, combustion control, and ventilation applications.

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

HVAC pressure sensors play a critical role in maintaining the efficiency, safety, and comfort of heating, ventilation, and air conditioning systems. These sensors measure pressure differentials within the system to provide valuable insights into system performance and enable automated control.

Applications

• Air Filter Monitoring: Pressure sensors can be used to monitor the pressure drop across air filters. As filters become clogged, the pressure drop increases, indicating the need for filter replacement. This ensures optimal air quality and system efficiency.
• Duct Static Pressure Measurement: Measuring duct static pressure is crucial for maintaining proper airflow in HVAC systems. Pressure sensors can accurately measure the pressure within the ducts, allowing for adjustments to fan speed and damper positions to optimize airflow and system balance.
• Fume Hood Monitoring: In laboratories and industrial settings, fume hoods rely on proper airflow to exhaust hazardous fumes. Pressure sensors monitor the pressure differential within the fume hood, ensuring safe and effective ventilation.
• Building Pressurization Control: Maintaining a slightly positive pressure within a building is essential for preventing the infiltration of outside air and contaminants. Pressure sensors can monitor building pressure, enabling automated control systems to adjust ventilation rates and maintain optimal pressurization.
• Fan and Blower Control: Pressure sensors can be used to monitor the performance of fans and blowers. By measuring the pressure generated, these sensors can detect issues such as fan wear or blockages, enabling proactive maintenance.
• Refrigerant Pressure Monitoring: In air conditioning systems, pressure sensors monitor the refrigerant pressure to ensure efficient operation and prevent leaks. These sensors can also be used to detect refrigerant charge levels.
• Differential Pressure Flow Measurement: By measuring the pressure drop across a flow element such as an orifice plate, HVAC pressure sensors can accurately determine the flow rate of air or other gases in the system. This is essential for applications such as VAV (Variable Air Volume) systems and energy management.
• Cleanroom Pressure Control: Maintaining a consistent pressure differential between different cleanroom areas is critical for preventing contamination. HVAC pressure sensors are used to monitor and control the pressure cascade, ensuring that air flows from cleaner to less clean areas.
• Building Pressurization Control: Pressure sensors can be used to monitor and control the overall pressure of a building relative to the outside environment. This is important for maintaining occupant comfort, preventing drafts, and minimizing the infiltration of pollutants.