* I12040, 21006378

* Ionization Sensor Protects best on fast flaming fires

* Battery Backup (9V battery included) Provides continuous protection even during power outages

* Test/Reset Button Tests smoke alarm circuitry and horn and resets alarm memory

* Red LED Flashes every 30-40 seconds to indicate that the smoke alarm is operating properly

* Green LED Indicates AC power is present

* Tamper Resist Locking Pin Helps deter from theft or tampering

* Quick Connect Power Harness Makes installation fast and easy

* Battery Pull Tab Eliminates battery installation time and keeps battery fresh

* Interconnectable Interconnect up to 24 Kidde devices (of which 18 can be initiating) on one wiring network

Technical Specs

* Unit Number I12040, 21006378

* Power Source 120 VAC, 9V Battery Back-up

* Sensor: Ionization

* Audio Alarm: 85dB at 10 ft.

* Temperature Range: 40F to 100F

* Humidity Range: 5%-95% relative humidity

* Size 5.6" diameter x 1.55" depth

* Weight 1 lb

* Interconnect Up to 24 Kidde Devices

* LED Green, AC Power/Red, Normal