CO Gas Detector


The CM-E1 is a low voltage detector of Carbon Monoxide (CO). The CM-E1 is designed for connection to UL Listed Fire Alarm/Burglary Control Panels. Alarm control panels that work on 12 or 24 VDC can provide battery backup to the CM-E1 detectors. This carbon monoxide detector is designed to detect CO gas from ANY source of combustion. It is NOT designed to detect smoke, fire or any other gas.


Key Features:

– Listed to UL standard 2075 for the Standard For Safety for Gas and Vapor Detector and Sensors

– Tested to UL 2075 using UL 2034 Sensitivity limits for carbon monoxide gas

– California State Fire Marshal Listed

– Surface mounts to a wall using the supplied enclosure rear housing

– Flush mounts in a 2 x 4 (1-1/2 inch deep minimum) single gang switch, or handy electrical box

– Small, low profile, attractive unit in a white plastic case

– Detector alarms at multiple levels of exposure to carbon monoxide based on time weighted averages of the gas present

– Test & Reset switch conducts internal tests and actuates alarm relay

– Highly linear electrochemical sensor

– N.O. or N.C. SPST Alarm Relay and N.C. SPST Trouble relay to connect to Alarm Control Panels

– Buzzer: Produces repeating loud tone bursts during alarm, and chirps if sensor trouble is found


CurrentNormal 15mA @9-32 VDC
Alarm 35mA @9-32 VDC
Operating Voltage9-32 VDC
RelayN.O. or N.C. SPST Alarm Relay 100mA, 40VDC
Buzzer85 dBA at 10 Feet
Operating Temp4.4°C to 37.8°C
ApprovalSignaling UL listed