FIRST ALERT Carbon Monoxide Alarm, Carbon Monoxide Detection Method, 120 VAC, Audible, Visual Alarm, LED Light Visual Indicator, 85 dB Sound Level, Electrochemical CO Sensor, 0.09 A, 60 Hz, Plug-In Connection, 40 to 100 deg F, 3.4 in Width, 1.38 in Height, 5 in Depth