MSR Germany LEL Gas Senor Transmitter

In stock


MSR sensor unit MC2 houses a module with µController, analog output, and power supply in addition to the pellistor sensor element including an amplifier. The µControll 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.
Application: detection of combustible gases,Gas Leak and  Fire Detection

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MSR Germany LEL Gas Senor Transmitter Exchangeable sensor unit includes digital value processing, temperature compensation, and self-control for the continuous monitoring of the ambient air.


  • Digital measurement value processing incl. temperature compensation.
  • Internal function control with integrated hardware watchdog
  • High accuracy and reliability
  • 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 onsite 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
  • Display with two open-collector outputs for horn (resettable) and warning lamp (option).

Additional information

Weight 1 kg





± 1 % LEL (CH4)

Sensor Element

Pellistor (catalytic bead) sensor P34XX

Gas Type

Combustible gases, see Order Information

Display resolution

0,1 % UEG

Temperature Range

-30 °C to +60 °C (-22 to 140 °F)

Humidity Range

5 – 95 % RH not condensing

Pressure Range

Atmospheric ± 10 %

Storage Temperature Range

+ 5 °C to + 30 °C (41 °F to 86 °F)

Storage time

6 months

Protection class

IP 65 (only if mounted in housing type A, D or N)


Screw mounting / M25

Wire connection

Screw-type terminal min. 0.25 mm2, max. 1.3 mm2, 3-pin, 24 to 16 AWG


(D x H) 24 x 22 mm (0.94 x 0.87 in.)

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MSR Germany LEL Gas Senor Transmitter