Pick air pressure transmitters with a 4-20 mA loop output for measuring system air pressures and select appropriate options for monitoring environmental air pressure changes, ventilation duct air pressure, air compressor, air cleaning or pneumatic feed lines.
Air pressure transmitters with 4 to 20 mA current output signals and optional intrinsic safety approval for process control and monitoring of pneumatic air pressures on heating, ventilation and air conditioning systems, pneumatic compressors, gas cylinders and other industrial air systems.
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.
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. 
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) .
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.
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.
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.
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.
DMD341 Compact Differential Air Pressure Sensor - Small size dp sensor for measuring differential air pressure on HVAC, compress air and pneumatic control systems.
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.
- -3 to 3 psi dp range high accuracy 4-20mA air pressure transmitter for water treatment use
- Minus 30 inHg 4-20mA air pressure sensor for measuring vacuum in a sealed tank heated to 350F
- Bulk powders silo fluidisation blower aeration ATEX approved HART pressure transmitter
- -2 to 2 inHg g 4-20mA out intake and exhaust air pressure sensor for building management use
- -200 to 200 Pa bi-directional range 4-20mA output dp pressure transmitter for venturi tube
- 40 bar absolute 0-20mA output air pressure sensor for pneumatic monitoring
- -15psig 0-10V out negative pressure transducer and display for air extraction use
- -0.1 to +0.1 inH2O g range 4-20mA signal air pressure sensor and display for pharmaceutical manufacturing use
- 1 inH2O differential intrinsically safe 4-20mA out air pressure sensor for HVAC use
- 20barg range 4-20mA output air pressure sensor for pneumatic valve leak testing use
- 550-1100mbar absolute 4-20mA high resolution air pressure sensor for environmental test chamber use
- 250psig air regulator pressure gauge with 4-20mA output and 1/4 NPT male fitting
- 20 mbarg digital display air pressure indicator and transmitter with 1/4 NPT male fitting
- 20 barg range 4-20mA output 300degC hi-temp air pressure sensor for aerospace testing use
- 10bar differential range 4-20mA output air pressure sensor for leak testing use on a 110bar line
- Bi-directional 15psig 4-20mA out air pressure sensor for research use
- 15psi dp range 4-20mA air pressure sensor for chamber airflow testing use on a 15psi line
- Outside HVAC 900-1100 mbar abs baro range 4-20mA signal pressure sensor
- SIL 2 certified 800 to 1200 mbar abs range air pressure transmitter
- Minus 0.25 inWG differential pressure transmitter for negative air pressure difference
- Industrial powder duct pressure transmitter with +/-15 kPa range
- Air flow normalising calculation barometric pressure transmitter
- 5 psi delta air pressure sensor with 4 to 20 mA output
- 50 millibar hazardous area air pressure sensor with 4-20mA out and 1/2 NPT male fitting