SMOKE ALARM

First Alert Smoke Alarm, 120 V, Ionization Sensor, 85 dB, White. Designed to help promote household safety, the First Alert hardwired smoke alarm with battery backup can provide a vital early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires. 120 V hardwired smoke alarm wires directly into your home’s electrical system. Ionization smoke sensor is optimal for detecting fast flaming fires. Gasket-less mount system for hassle-free installation. Easy-to-access battery drawer. Battery backup for detection during a power outage.