Clip the 40% off coupon on each product page to get the prices below. All of these are their lowest price ever from Amazon! First Alert Battery-Operated Smoke Alarm: $10.19 First Alert 10-Year Sealed Battery Smoke Alarm: $12.95 First Alert Hardwire Interconnect Smoke Alarm with Battery Backup: $13.86 First Alert Hardwire Interconnect Smoke Alarm with […]