RKI Instruments

RKI Direct Connect MPS type LEL Sensor with XP J-Box 61-1020

Ships in 6 - 8 weeks
2 Year Warranty
RKI Instruments
RKI Direct Connect MPS type LEL Sensor with XP J-Box 61-1020
2 Year Warranty


RKI Direct Connect MPS (Molecular Property Spectrometer) type LEL Sensor with explosion proof J-Box is used for remote detection. The Direct Connect sensors can be used either indoors or outdoors. The flame arrestors utilizes a patented coating, which makes it water repellent.

RKI Molecular Property Spectrometer LEL Sensor internally identifies the gas or gases being detected, and applies the appropriate LEL conversion factor so that it will read a variety of flammable gases or vapors correctly by just utilizing a methane calibration. Capable of detecting over a dozen different combustible gases simultaneously, including Hydrogen, the Molecular Property Spectrometer is unsurpassed in reliability, accuracy, and worker safety. No other sensor can match the accuracy of the MPS in reporting 0-100% LEL across multiple gases. The MPS’s robust design means it won’t drift, decay, or poison over time. Expected sensor life is over 10 years in normal applications.

Key Features:

  • Connect directly to a Beacon controller
  • Explosion proof housing
  • Stainless steel enclosures available
  • Patented water repellent sensor coating

Sensor Features:

  • Responds accurately to over 14 gases, with a calibration to methane
  • No conversion factors needed
  • Immune to poisons such as H2S, Silicone, and HCFC’s
  • Requires only annual field response checks
  • Can be used in high humidity conditions
  • Explosion proof approval CULUS
  • Long sensor life
  • Two year warranty on the sensor (1 year on electronics)


  • Applications where silicone is present
  • High humidity applications where IR or catalytic may not hold up
  • Applications where a mixture of hydrocarbons could be present
  • H2 applications where poisoning of the sensor is a concern
  • Specification Sheet: Specification Sheet

    Part Number:
    61-1020 - LEL, Direct Connect, MPS type detector with XP J-Box

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    Additional Information

    Country of Origin:
    United States
    8.00 LBS
    8.50 (in)
    1.00 (in)
    12.00 (in)
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