The 120 volt Firex 4618 Pro Basic smoke detector has an ionization Sensor, quick connect power harness, is multi-station interconnectable, has a 5 year warranty,
Tag: Hardwire
Kidde KN-COSM-IB Hardwire Combination Carbon Monoxide and Smoke Alarm with Battery Backup and Voice Warning, Interconnectable
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First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
The BRK hardwire combination smoke and carbon monoxide alarm detects two hazards with one simple unit. Carbon monoxide (CO) is a colorless, odorless, deadly gas.