Smico100 2-in-1 Battery Operated Electrochemical/ionization Smoke & Carbon Monoxide Alarm

BRK SMICO100 Battery-Operated Electrochemical/Ionization 2-in-1 Smoke & Carbon Monoxide Alarm. Protects against the threat of smoke and carbon monoxide. Replaceable 9V alkaline battery included. A battery pull tab is also included to keep the batteries fresh until the home is occupied. Latching Alarm Indicator, visually identifies unit that initiated alarm or low battery. Test/Silence Button temporarily silence or test the alarm with one-touch easy access button. A dust cover keeps the alarm clean during construction.