The Kidde i4618 is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms.

Specifications:

Type: Smoke Detector Alarm, Wire-In
Operation Type: Ionization
Voltage Rating/Source: 120 Volt AC at 60 Hertz with 9 Volt Battery Backup
LED/Strobe Type: Red LED (4 Mode Operation), Green LED (Receiving AC Power)
Horn Type: 85 Decibel at 10 Foot
Number of Interconnections: 24
Approval: UL