2026 Upgraded Open Market 2025 Firex 4-Pack Hardwired Smoke Detector with Ionization Sensor Improved

Compatible with Kidde. FireX. code one and sentinel products. The Kidde i4618 is an AC/DC powered. ionization smoke alarm that operates on a 120V power source with 9V battery backup. Contractor box contains 4 alarms. mounting brackets. batteries and wire harness all included.