First Alert 1046882 Interconnect Hardwire Smoke & CO Alarm with 10-Year Battery Backup Brand_Wiss variable tooth design specifically designed

variable tooth design specifically designed for maximum performance in nail embedded wood

bottom pad for no clanking or slippage

every 7 to 14 days

091 23 1/2 Carbon Steel 100

First Alert 1046882 Interconnect Hardwire Smoke & CO Alarm with 10-Year Battery Backup Brand_Wiss variable tooth design specifically designedInstall convenient 2 in 1 protection against both smoke and carbon monoxide with the First Alert SMICO105 AC Hardwire Interconnect Smoke and CO Alarm with 10 Year Battery Backup. Meets new industry standards and can interconnect with other compatible detectors to create a whole home alarm system to help provide an early warning. First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking