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  • NEMA 4X rated enclosure
  • Air and non-combustible, compatible gases
  • ±0.25% FS accuracy
  • LCD display
  • Easy calibration
  • Polycarbonate case


The Dwyer 616W Differential Pressure Transmitter can be measured within a full span accuracy of ±0.25. Units are enclosed in a polycarbonate case, rated NEMA 4X (IP66) and operate by sensing the pressure of air and compatible gases then sending a standard 4-20 mA output signal. Design enables operation in 2-wire current loops. A wide range of models are available factory calibrated to specific ranges. The span and zero controls are for use when checking calibration. They are not intended for re-ranging to a significantly different span. The LCD display allows local indication of pressure.

Applications for the 616W include:

  • Dust collection
  • Outdoor HVAC
  • Roof-top equipment