Interconnect Hardwire Smoke Alarm, SM100V-AC

Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts Voice Warning with Location, voice tells what the danger is and its location. Direct wire-in AA battery backup, hardwired with battery backup for protection during power outages. Latching alarm indicator, visually identifies unit that initiated alarm or low battery. Advanced smoke protection, advanced sensing technology for early warning and less nuisance alarm. Test/Silence Button, temporarily silence or test the alarm with one-touch, easy access button. Dust cover, keeps the alarm clean during construction