Electronic detection system used to measure the concentration of CO and provide feedback and automatic exhaust fan or valve control to help reduce CO concentrations in parking garages, maintenance facilities or other commercial applications.

• Fan relay actuation: selectable at 15, 25, 35 (default), 50 or 100 ppm CO
• Output: Fan relay, Alarm relay and 4-20mA current loop
• Controls: Digital display (0-200 ppm), buzzer, fan delay, fan minimum runtime
• Mounts on a standard 4" x 4" electrical box
• 5 A SPDT fan relay controls valves, louvers or exhaust fans
• 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels
• Factory calibrated
• Supervised system design: detector problem will cause the fan and alarm relay to activate
• Power: 3 W (max) from 12 to 24 VAC or 12 to 32 VDC