USI ELECTRIC Usi Electric® Direct Wire Smoke And Carbon Monoxide Combo Alarm With Battery

USI Electric® Smoke/CO Combination Alarm ^ 5.63" Dia x 1.75"H ^ Test/Reset/Silence Button ^ 120V, AC, 60Hz, With 9V DC 10-Year Sealed Alkaline Battery Backup ^ Direct-Wire ^ LED Status Indicator ^ End-Of-Life Signal ^ Smart Alarm Technology Virtually Eliminates Nuisance Alarms ^ Ionization And Electrochemical Sensors ^ Tamper Resistant ^ Sealed Battery Compartment ^ Interconnectable Up To 24 Units ^ 10-Year Limited Warranty On Battery And Alarm ^ Mfg #MIC1509S/U|5.63" Dia x 1.75"H|Test/Reset/Silence Button|120V, AC, 60Hz, With 9V DC 10-Year Sealed Alkaline Battery Backup|Direct-Wire