IOT Plus

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Differential Pressure Sensor

  • The wireless differential pressure sensor measures the pressure difference between two input ports and transmits the measurement to our online portal. When viewing the sensor from the top, the right inlet port is the negative or low side pressure input. When the pressure on this port is greater than the left port the sensor produces a negative pressure reading. When the pressure is greater on the left port the sensor produces a positive pressure reading.


    • Measurement range: -500 Pa to 500 Pa
    • Calibrated and temperature compensated

    * Actual range may vary depending on environment.
    ** Battery life is determined by sensor reporting frequency and other variables.

    Data Snapshot

    Differential Air Pressure Sensor Data in Software

  • Pressure Range -500 Pa to 500 Pa
    Allowable Overpressure 100 kPa
    Rated Burst Pressure 500 kPa
    Max Humidity for Long-Term Exposure 40°C dew point
    Accuracy 3% of reading +/- 0.1 Pa
    Span Repeatability 0.5% of reading
    Span Shift Due to Temperature Variation < 0.5% of reading per 10°C
    Offset Stability < 0.05 Pa/year
    Calibrated For Air, N2
    Media Compatibility Air, N2, O2, non-condensing
    Supply Voltage 2.7–3.8 VDC (3.0–3.8 VDC using power supply)
    Battery Type 2 Replaceable AA 1.5 V Batteries
    Dimension 4.375 in x 2.470 in x 1.12 in
    Supply Voltage 2.0 – 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)
    Battery Life At 1 hour heartbeat setting, included AA batteries will typically last 6-8 Years. **
    Max Operating Temperature Using AA Alkaline -18°C to 55°C (0°F to 130°F)
    Max Operating Temperature Using AA Lithium -40°C to 60°C (-40°F to 140°F)
    Optimal Battery Operating Temperature +10°C to +50°C (+50°F to +122°F)
    Enclosure Material ABS
    • Building / Room Pressure
    • Air Flow
    • Variable Air Volume Filter Status
    • Duct Pressure
    • Clean Rooms
    • Hospitals
    • Fume Hoods
    • Computer Rooms
    • And many more…