Now Available

5 Gas

GX-3R Pro
  • GX-3R gas monitor


    Smallest & lightest 4 gas monitor, LEL, O2, H2S, CO or H2 Compensated CO sensor available

    4 Gas Monitor
  • GX-3R Pro gas monitor

    GX-3R Pro

    Smallest & lightest 5 gas monitor, LEL, O2, CO, & H2S, with option for IR or toxic sensors

    5 Gas Monitor
  • SDM-3R calibration station


    Calibrate, bump test, charge, and archive data with a single module or up to 10 simultaneously

    Calibration Station
  • RP-3R sample draw pump


    The attachable RP-3R pump is available for the GX-3R. 100' sampling range and independent power supply.

    Clip-on Sample Draw Pump

About the GX-3R (Pro)

  • Personal monitoring
  • Confined Space Entry 
  • Refineries/petrochemical
  • Arson Investigation 
  • Utilities
  • Oil and Gas
  • Water/wastewater
  • Fire services
  • Construction
  • Smallest & lightest multi gas monitor
  • Gases displayed simultaneously
  • 25 hours of operation
  • Field replaceable sensors & filters
  • Water and dust resistant design, IP66/68
  • Non-Compliance indicator
  • Simple 2-button operation
  • Alarms: audible, visual, & vibration
  • 3 user adjustable alarm levels
  • Impact resistant body with removable rubber boot
  • Large LCD Auto-backlit display
  • 3 Year warranty
  • GX-3R Pro special features
    • Bluetooth mobile App
    • 5th channel available
    • Infrared or toxic sensors available
    • Auto-rotation of display

RKI Instruments

RKI offers reliable combustible gas detectors, leak detectors, and professional gas detection equipment.
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Leading Gas Detector Manufacturer A Reliable source for advanced gas detection equipment as well as solutions to specific gas monitoring applications. Download Our Product Catalog