The CO1224TR Carbon Monoxide (CO) Detector with RealTest from System Sensor is a round version of the award-winning System Sensor CO1224T CO detector for ceiling or wall applications — where a round device better suits the aesthetics. Like the CO1224T, the CO1224TR includes the RealTest field functional CO test fully compliant with NFPA 720: 2009. The units also provide multiple mounting options and are easy to install, test and maintain. Other features include a low current draw, the latest electrochemical sensing cell, and a six-year, end-of-life timer. www.systemsensor.com/co
