Molecular Property Spectrometer S4

MPS Sensor S4 Intrinsically Safe
ART.NR MPS™ Flammable Gas Sensor S4

MPS Flammable Gas Sensor, S4, for gas detection and quantification for worker safety and leak detection in drilling, transportation, and production of oil & gas and chemical products.

The smart sensor quickly detects and accurately quantifies over a dozen gases and gas mixtures using a standard factory calibration. It has built-in environmental compensation and automatic self-testing for fail-safe operation. It is intrinsically safe, robust, and extremely poison resistant. Sensor readings are output on a digital bus or configurable analog output – no added electronics are required. With a 5-year lifetime and no calibration required, the MPS Flammable Gas Sensor delivers industry-leading performance and a low cost of ownership.

Operating principle
The MPS Flammable Gas Sensor’s transducer is a micro-machined membrane with an embedded Joule heater and resistance thermometer. The MEMS transducer is mounted on a PCB and packaged inside a rugged enclosure open to ambient air. Presence of a flammable gas causes the thermodynamic properties of the air/gas mixture that are measured by the transducer. Sensor data are processed by patent-pending algorithms to report an accurate concentration and classify the flammable gas.

 Also pls see the MPS™ Mini Flammable! 

Contact us at ACTE for more information!



  • Automatic multi-gas accuracy in real-time
  • Built-in environmental compensation
  • EN50271 compliant (in certification)
  • Compliant to IEC 60079-29-1:2016
  • No calibration required
  • 2 year warranty with 15+ year lifetime
  • Can be powered by 3V Low ave. power: 27.3 mW typical at 3V
  • Extremely poison resistant
  • Intrinsically safe (IS) certified
  • Built-in self-test for fail-safe operation
  • Custom analog out configurations


  • Resolution 0.1% LEL
  • Response time (T90) < 20 seconds
  • Calibration Factory calibrated

Environmental operating range:

  • Temperature − 40 to 75°C
  • Humidity 0 to 100 %RH
  • Pressure 80 to 120 kPa

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