Kidde Battery Operated Smoke Alarms, Smoke;Fire, Ionization, 5 in Diam

Test button—Tests unit's electronic circuitry, horn and battery function. Low battery indicator—Smoke alarm will chirp in the event of a low battery. Red LED—Flashes every 30-40 seconds to indicate that the smoke alarm is receiving power. Dust cover. Battery operated—Easy installation and continuous protection even during power outages

Attributes:

Depth [Nom] = 1 3/4 in, Dia. [Nom] = 5 in, Display Type = LED, Gas Type = Smoke; Fire, Height [Nom] = 5 in, Includes = Tamper Resist Feature, Power Source = 9V Battery, Sensor Type = Ionization, Sound Level = 85 dB, Temp. Range [Max] = 100 °F, Temp. Range [Min] = 40 °F, Width [Nom] = 11 in, Wt. = 2 lb. (1 EACH = 1 EACH)