When dangerous amounts of CO are detected, the CO1224T and CO1224TR (round) CO detectors from System Sensor alert residents by sounding and flashing a temp 4 signal alarm. The CO1224T and CO1224TR CO detectors include RealTest technology, so they can be tested using a CO gas agent, fully meeting the requirements of NFPA 720: 2009. Designed for system operation, these detectors are fully listed to UL 2075 and offer a code-required trouble relay to send a sensor failure or end-of-life signal to the control panel and central station.

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