Kidde i12040 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush *2-Pack*
Price 22.04 USD
Hush feature temporarily silences nuisance alarms * One touch test button tests unit"s electronic circuitry * Battery backup 9V battery included * Tamper resist locking pin helps deter alarm tampering and theft * Kidde smoke alarms meet the UL requirements