First Alert 9120B 120-Volt Wire-In With Battery Backup Smoke Alarm, 12-Pack

SKU: 4324800721989778 Category:

Description

The 120V AC Smoke Alarm with Battery Backup is designed to install faster;perform better; and be even smarter than before. Ionization sensor. Theseimprovements help reduce nuisance alarms and save you time and money. Uses 9Vbatteryfor Battery Back up.