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  • Low Ranges Down to 0.25 in w.c. (60 Pa)
  • ±0.50% F.S. accuracy
  • Air and non-combustible, compatible gases
  • NEMA 4X (IP66) enclosure rating
  • 3 digit LCD digital display
  • Polycarbonate case


The Dwyer 616WL Differential Pressure Transmitter senses very low pressures of air and non-combustible, compatible gases and sends a standard 4-20 mA output signal. All models, including those featuring the 3 digit LCD digital read-out, are factory calibrated to specific ranges as listed in the chart below.

Positive, negative and differential pressures can be measured within a full span accuracy of ±0.50%. This weatherproof unit is enclosed in a polycarbonate case, designed to meet (IP66/NEMA 4X). Internal digital push button zero and span allow for quick and simple field calibration.

Applications for the 616WL include:

  • Low pressure applications
  • Outdoor HVAC
  • Dust collection
  • Roof-top equipment