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 – Generally more sensitive at detecting small particles, which tend to be produced in greater amounts by flaming fires

9 V Battery Included

10 Year limited Warranty

Meets UL217 Standard

See it here for $10.53 each (opens in new window)

New in package

This sale is for 3 as shown in the photograph.