The CO1224T CO detector from System Sensor provides a simple test that verifies the CO cell's functionality when using canned CO. Featuring RealTest technology, simply press the test button to check the detector's circuitry. If needed, spray CO into the detector's sensor - the detector will go into alarm, indicating a functional unit. Designed for system operation with security and fire panels, the detector calculates CO concentrations accurately and communicates to the panel immediately - guaranteeing around-the-clock protection. In addition to RealTest, the CO1224T offers features including: 12/24 VDC; Low current draw; Built-in trouble relay and SEMS terminals; Versatile mounting on wall and ceiling surfaces or on a single gang box; Electrochemical sensing technology; and Six-year end-of-life timer. To learn more and see a RealTest demo, visit www.systemsensor.com/co.