Low profile compact round 9 volt battery (included) powered photoelectric smoke alarm with silence feature. Tamper resistant. Locks alarm to mounting bracket to prevent removal of battery and/or alarm. 10 year limited warranty.
Wired-in 120 volt 60 Hz AC powered with 9 volt battery back-up, side load battery drawer and dust cover. Photoelectric smoke sensing chamber, 85dB horn, single button test/silence, green LED power light and a red LED light that indicates either unit is operating under DC power or is in alarm. Interconnectable with up to 18 devices, of which 12 can be smoke alarms. UL Listed.
Easily expand an existing interconnected 120-volt AC system by replacing one alarm in the series with this alarm. Add additional battery-operated wireless alarms to expand without wires. Photoelectric smoke alarm reduces nuisance alarms. Alarm and low battery silence feature.