Kidde - AC, DC Wire In 120 Volt Carbon Monoxide Alarm - 79326070 - MSC Industrial Supply
Gentex 918-0021-002, Model: GN-503FF is a 120VAC/9VDC single or multiple station combination photoelectric smoke/electrochemical carbon monoxide alarm with tandem interconnect capabilities and dual, independent relays that activate independently for smo
BRK 9120B Hardwire Electric Smoke Detector 120 V AC with 9V Battery Backup