First Alert Battery Operated Smoke Alarm With Silencer SA303CN3
Mute button, mutes unnecessary alarms immediately. Also tests alarm function with same button.
EZ access battery door, no need to remove alarm from ceiling to change battery.
Optional theft-prevention lock when activated, batteries and/or alarm cannot be removed without proper tools.
Ionization smoke sensor, optimal smoke detection from flaming fires.
9v battery included.
Loud 85db alarm.
Meets UL217 standards.
Emits T3 Pattern.
Product Dimensions (LxWxH): 4.34 x 4.34 x 1.9 in.