Series DM-2000 Differential Pressure Transmitter

Brand: Dwyer Instruments, LLC

The Dwyer Series DM-2000 Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal.

The DM-2000 housing is specifically designed to mount in the same diameter cutout as a standard Magnehelic® gage. A wide range of models are available factory calibrated to specific ranges.

Pressure connections are inherent to the glass filled plastic molded housing making installation quick and easy. Digital push-button zero and span simplify calibration over typical turn-potentiometers.

An optional 3.5 digit LCD shows process and engineering units. A single push button allows field selection of 4 to 6 engineering units depending on range.
  • Zero and span controls provides easy calibration checks and shorter installation time to get device running and monitoring
  • Quick response to pressure changes means no delay in signaling and alerting to critical situations
  • Easy to read LCD display provides immediate local alerts allowing corrective action to be taken quicker to eliminate the problem from becoming widespread
  • Same size as Magnehelic simplifies field upgrade to digital pressure gauge by reducing install steps



  • ± 0.1 % of Full Scale at 21° C (70° F)


  • DC: 38 mA - Max.


  • 3-1/2-Digit LCD

Electrical Connectors

  • Screw Typical Terminal Block

Loop Resistance

  • 0 to 1250 ohm


  • Air
  • Non-Combustible, Compatible Gases


  • Flat Flush Mounting Bracket
  • Surface Mounting Bracket


  • NIST Traceable Calibration Certificate


  • 4-20 mA

Power Requirement

  • 10-35 Vdc (2-Wire)

Pressure Range

  • Inches WC: 0 to 5

Pressure Type

  • Gauge

Sensor Orientation

  • Vertical

Span & Zero Adjustments

  • Digital Push-Button


  • ± 1 % of Full Scale Per Year

Temperature Effect

  • ± 0.055 % of Full Scale/°F
  • 0.099 % of Full Scale/°C

Temperature Range

  • -6.67° to 48.9° C (20° to 120° F)

Tube Connection

  • 1/8” I.D. Tubing

  • Filter Monitoring
  • Fan Pressure Indication
  • Static Pressures in Ducts or Buildings
  • Bi-direction Ranges Ideal for Sensing Fluctuating Building Pressure
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