First Alert Smoke Alarm 9V SMOKE ALARM, FG250RV,

Keep your family safe with this hardwired smoke alarm; the 10-year battery backup means constant monitoring for the life of the alarm, even if there's a power failure Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm To ensure complete protection make sure to place one on each level of your home and in each bedroom Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected Simple to use, with a single test/silence button, and side-load battery compartment; tamper-resistant locking brackets and universal mounting brackets make installation easy. Emits T3 Pattern Rigorously tested to meet UL standards ; 120-volt hardwired smoke alarm wires directly into your home’s electrical system Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety