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  • Usually ships in 4-6 weeks



  • Max operating pressure
    • > 1inH2O 6psi
    • ≤ 1inH2O 3.6psi
  • 6psi max burst
  • Accuracy
    • ±1% above 0.25inH2O
    • ±2% for 0.25inH2O
    • ±4% for ±0.1inH2O and below
  • -4 to 158°F (-20 to 70°C) temperature limits
  • NEMA 4X (IP66), CE


The Dwyer DM DigiMag Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20mA output signal. The DM housing is specifically designed to mount in the same diameter cutout as a standard Magnehelic gauge (2000 and AT2200). A wide range of models are available factory-calibrated to specific ranges. The polycarbonate molded housing features integral pressure connections. Digital push-button zero and span simplify calibration over typical turn-potentiometers. A single push-button allows field selection of 4 to 6 engineering units, depending on the range.

Applications for the DM DigiMag include

• Differential pressure across filters
• Fan control
• Static pressures in ducts or buildings
• Room pressurization monitoring