IR Gas Detector – IR4000S

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IR Gas Detector – IR4000S

IR Gas Detector – General Monitors IR4000S

The Model IR4000S Single-Point IR Gas Detector is a display and user interface for the Model IR400 point IR gas detector. The monitor allows local calibration and displays gas concentration. Relays are optional. The relays provide output for Alarm, Warn, and Fault conditions. The IR4000S is backwards compatible with the IR2100 point IR gas detector.


  • Three-digit LED displays gas concentrations in % LEL, fault codes for troubleshooting and calibration prompts
  • Explosion-proof enclosure allows installation in hazardous locations
  • Optional 8 Amp relays expands system functions
  • Magnetic interface provides ease of maintenance and accessibility


  • Chemical
  • Pharmaceutical
  • Pesticides
  • Fertilizers
  • Food and beverage bottling plants
  • Sewer entry
  • Wastewater treatment
  • Coal gasification
  • Pulp and paper
  • Metals
  • CO2 fire suppresant monitoring
  • Enhanced oil recovery