Carbon Monoxide and Smoke Detector Electrochemical and Ionization Hardwired 120 V AC 9 V Battery 12-Pack SC9126BTCA

The carbon monoxide and smoke alarm combines electrochemical CO sensing and ionization smoke detection for dependable dual protection. Hardwired to a 120 V AC power supply with a 9 V battery backup for continuous safety. Supplied in a 12-pack, ideal for residential or commercial use.