Kidde Battery Operated Smoke Alarms, Smoke, Ionization, 5.6 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] = 1.55 in, Dia. [Nom] = 5.6 in, Display Type = Flashing LED, Gas Type = Smoke, Height [Nom] = 5.6 in, Includes = Lithium Battery, Power Source = Sealed Lithium, Run Time [Max] = 10 yrs, Sensor Type = Ionization, Sound Level = 85 dB, Temp. Range [Max] = 100 °F, Temp. Range [Min] = 40 °F, Width [Nom] = 5.6 in, Wt. = 1 lb. (3 EACH = 1 BOX)