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Differential Pressure Sensor AI161
Pressure Medium: Air/Gas
Sensor Type: Gauge, Differential
Supply Voltage: 5V
Output Signal: Voltage, 4-20 mA
Pressure Range: Under 4” H2O
Kind: Packaged Transducer

Model 161 Series are low-range differential pressure transducers and transmitters. Each unit features a stainless steel pressure sensor, a stainless steel back cover, and a plastic enclosure. 

The electrical terminal screws and adjustment holes are concealed beneath a detachable plastic cap. All units are fully protected against short circuiting and incorrect wiring. Pressure ranges are available from 0.1" WC to 100" WC in both uni-directional and bi-directional models. 

The output is either 0-5 VDC or 0-10 VDC, where 0 VDC is true zero without offset. A 4-20 mA version is also available. All units are temperature-compensated. Special orders for non-standard pressure ranges can be accommodated (e.g. -0.5" WC to +3.5" WC). This model is similar to the Setra 264 & 265 Series.


  • Up to 15 PSI overpressure
  • Incorrect wiring protection
  • Nonstandard pressure ranges
  • True zero output for voltage unit
  • RoHS Compliance
  • Pressure ranges as low as 0 - 0.1"WC
  • Temperature-compensated
  • Uni-directonal or bi-directional

Typical Uses

  • HVAC air pressure and VAV pressure sensor
  • Cleanroom pressure and fume hood airflow control
  • Duct static pressure measurement
  • Draft control
  • Furnace airflow control
  • Isolation rooms