The Macurco CM-E1R is a reliable, lightweight, and aesthetically pleasing gas detector made to keep you and the people you care about safe from harmful gases in residential and light commercial applications. It is a low voltage gas detector designed for use with fire and security systems.Main FeaturesLow replacement costs with 10 year sensors with End Of LifeLow maintenance with no calibration neededMounting base sold separatelyClip in wire harness for in and out replacementAesthetically pleasing. Flush mount or surface optionsTies into any Fire/Burglary panel for local and remote monitoringMade in AmericaUL 2075 ListedLocal alarm ? Temporal 4 SounderGeneral InformationName: Macurco CM-E1R Security Series Carbon Monoxide CO Gas Detector, 9-32VDC, Residential/Light Commercial, Round, Aerionics, Inc, MacurcoCategory: Macurco, Fire, Fire Detection Devices, Carbon Monoxide DetectorsUPC Code: 857560007174Country of Origin: United States. Country of origin is subject to change.