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Model CT2100 2 Gas with Relay


Key Features

  • Can be utilized with most AirTest Gas Sensors
  • All CT1000 sensors can be integrated into same enclosure
  • High and low relay activation points and adjustable time
    delay for each gas
  • Multiple units can be daisy chained to control a zone
  • Rugged enclosure
  • CSA certified
  • Now also available with LonWorks® communication capability as a LonMark® Certified product.


  • Used to directly activate fans or alarms based on a target
    concentration of two different gases (e.g. CO and NO2).
  • Used where a low-cost integrated sensor and control option
    is desired
Model CT2100
  • Temp Range: -40 to 140°F (-40 to 60°C)
  • Integrated high and low concentration relays (10A)
  • Power options: 24 VAC, 115 VAC, 220 VAC
  • User adjustable delay for on-time (up to 30 minutes)
  • Power fault, and relay activation lights
  • Calibration: 1 year recommended
  • When ordering specify desired AirTest gas sensor measured and high and low activation levels
  • Ability to turn fans off and on based on input from two gas sensors.


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