Kidde Direct Plug & Battery Operated CO Alarm, Electrochemical

Digital display 1 second alarm and gas on display for gas detection 4 quick beeps for CO alarm Test/reset button

AC Powered Plug-In Carbon Monoxide Alarm, ElectrochemicalFeaturesDigital displayPeak level button

Battery Operated Smoke Alarms, Smoke, PhotoelectricFeaturesTest button—Tests unit's electronic circuitry, horn and battery functionLow battery indicator—Smoke alarm will chirp in the event of a low...

Carbon Monoxide Alarms, Carbon Monoxide, ElectrochemicalFeaturesIncludes the company's patented Nighthawk™ electrochemical CO sensorTest/reset button

Battery Operated Smoke Alarms with Hush, Ionization SensorFeaturesTest button—Tests unit's electronic circuitry, horn and battery functionLow battery indicator—Smoke alarm will chirp in the event of...