MSR MC2 NH3 Gas Sensor Transmitter

In stock


MSR MC2 PH3 Gas Sensor Transmitter houses a module with µController, analog output and power supply in addition to the electrochemical sensor element including amplifier. The µController calculates a linear 4 – 20 mA (or 2 – 10 V) signal out of the measurement signal and also stores all relevant measured values and data of the sensor element.


The µGard®2 Sensor MC2 is used for the detection of toxic gases or for oxygen monitoring wherever a typical 4 – 20 mA (or 2 – 10 V) signal is required.

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MSR MC2 NH3 Gas Sensor Transmitter contains an exchangeable sensor unit including digital value processing, temperature compensation, and self-control for the continuous monitoring of the ambient air.

Calibration is done either by simply replacing the sensor unit or by using the comfortable, integrated calibration routine directly at the system.

Features of MSR MC2 NH3 Gas Sensor Transmitter:

  • Digital measurement value processing incl. temperature compensation
  • Internal function control with integrated hardware watchdog
  • High accuracy, selectivity, and reliability
  • Low zero point drift
  • Long sensor lifetime
  • Hardware & software according to SIL2 compliant development process
  • Easy maintenance and calibration by the exchange of the sensor unit or by comfortable on-site calibration
  • 4 – 20 mA (or 2 – 10 V) analog output with selectable signal output for special mode, fault etc.
  • Reverse polarity protected, overload and short-circuit proof
  • Housing for the integration of the sensor unit
  • IP 65 version

Additional information

Weight 1 kg


Gas Type


Sensor Element


Pressure Range

Atmospheric ± 20 %

Storage Temperature

5 °C to 30 °C (41 °F to 86 °F)

Storage Time

6 months

Protection class

IP 65


Wall Mounting

Wire Connection

Screw-type terminal

Switching capacity

24 V DC / 50 mA (+ switching)


94 x 130 x 57 mm (W x H x D)

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MSR MC2 NH3 Gas Sensor Transmitter