Unbranded Hardwire Smoke and Carbon Monoxide Combination Detector with 9V Battery Backup, Voice Alarm, and Photoelectric Sensor

Kidde Front-Load Combination Smoke and Carbon Monoxide alarm offers protection from 2 hazards - fire and CO - in 1 unit. Sold under the FireX brand, this AC-wire with battery backup alarm emits a beeping tone followed by a voice warning that clearly announces the danger by saying, "Fire! Fire! Fire!" or "Warning Carbon Monoxide". Adapters are included for ease of install with other hardwired alarms (Kidde, FireX, First Alert, BRK).