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Low Differential Room Pressure Sensor & Transducer AI165


Model 165 Series are low range differential pressure transducers and transmitters. It features a stainless steel enclosure and a plastic top. The additional small cap covers the terminal screws and adjustment holes. The pressure range covers from 0.1"WC to 100"WC, unidirectional or bidirectional. The output can be 3-wire 0-5V, 0-10V, or 2-wire with a 4-20 mA output, fully protected against short circuits and incorrect wiring. In the voltage version, the output can go down to true zero. The units are temperature-compensated. The accuracy can be 1.0%, 0.4% or 0.25% at room temperature. The patented stainless steel sensor provides good corrosion resistance, excellent performance, and long-term stability. Our unique production setup can also make special pressure ranges (e.g. -0.5"WC to +3.5"WC) to meet special applications.) The difference between AI164 and AI165 are the location of the pressure ports.



  • Up to 15 PSI overpressure
  • NEMA 1 construction
  • Incorrect wiring protection
  • Temperature-compensated
  • Uni-directional or bi-directional
  • True zero output for voltage unit
  • Meets CE conformance standards
  • Meets RoHS requirements


  • HVAC and VAV control
  • Positive pressure cleanroom and fume hood controls
  • Duct static pressure measurement
  • Draft control
  • Furnace airflow control
  • Power plant airflow monitoring and control


Contact Information

Servoflo Corporation
75 Allen Street
Lexington, MA 02421

Phone: (781) 862-9572
Fax: (781) 862-9244

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