Home Slickdeals Kidde Smoke Alarms – 6 pack – 120 volt interconnected w 9v... Slickdeals Kidde Smoke Alarms – 6 pack – 120 volt interconnected w 9v battery backup – $43.20 FS at Home Depot By ARCOM - 30 April 2018 163 0 SHARE Facebook Twitter Go to the deal page: Kidde Smoke Alarms – 6 pack – 120 volt interconnected w 9v battery backup – $43.20 FS at Home Depot