RAE Systems Honeywell RAEGuard LEL

RAE Systems Honeywell RAEGuard LEL

RAE Systems Honeywell RAEGuard LEL

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RAE Systems Honeywell RAEGuard LEL
Fixed Gas Monitor for Combustible Gases



The RAEGuard LEL is a permanently mounted (fixed) catalytic bead combustible gas detector/transmitter that operates from a 9 to 36 VDC power source and provides an analog (4 to 20mA) and digital (RS-485) signal output in the range of 0 to 100%LEL combustible gas. Housed in an explosion-proof enclosure, the RAEGuard LEL is equipped with a local digital display of the gas concentration and function keys for performing calibration. The RAEGuard LEL can be operated with a standard 4 to 20mA/RS-485 controller or as a stand-alone sensor module.


Fixed Combustible Gas Monitor, 4 to 20mA/RS-485 Transmitter. 

Key Features:

  • Highly poison-resistant catalytic bead combustible gas LEL sensor
  • 4 to 20mA analog and RS-485 digital output of 0 to 100%LEL combustible gas including methane, hydrogen or other combustible gases
  • Explosion-proof enclosure for hazardous environment applications
  • Local displays with adjustment keys
  • Non-intrusive calibration
  • Magnetic key interface eliminates need to open explosion-proof housing when making calibrations or other minor adjustments
  • Operation at 9 to 36 VDC
  • Dry-contact output (<30V, 2A)

    Hazardous Location Classification:
  • UL: Class I, Division 1, Groups B, C, D
  • Temperature Code T6
  • Chinese Certificate: Ex d IICT6


    • Refineries
    • Oil production
    • Chemical plants
    • Industrial safety
    • Shipyards and maritime
    • Power plants
    • Steel mills

RAEGuard LEL - Datasheet