BRK 10-Year Battery Hardwired Photoelectric Sensor Smoke Detector with LED Strobe in the Smoke Detectors department at, smoke detector
This First Alert Hardwired Smoke Alarm includes a 10-year battery backup that continues to protect you in the event of a power failure. It uses an ionization smoke detector, and features a loud 85-decibel alarm. One
Source: viewngr.com