Home Slickdeals First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery... Slickdeals First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup, White Amazon $10.25 By ARCOM - 10 August 2021 52 0 SHARE Facebook Twitter Go to the deal page: First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup, White Amazon $10.25