Home Slickdeals First Alert Hardwired Photoelectric Smoke & Carbon Monoxide Detector (SC7010B) $25 +... Slickdeals First Alert Hardwired Photoelectric Smoke & Carbon Monoxide Detector (SC7010B) $25 + free s/h at Amazon By ARCOM - 10 January 2022 76 0 SHARE Facebook Twitter Go to the deal page: First Alert Hardwired Photoelectric Smoke & Carbon Monoxide Detector (SC7010B) $25 + free s/h at Amazon