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Combination Smoke & Carbon Monoxide Detectors
First Alert PRC710 10-Year Smoke and CO Detector
A sealed-battery smoke and carbon monoxide alarm that never needs a battery change, with a photoelectric sensor that cuts kitchen false alarms. It is not interconnected, per the listing.
A slim sealed-battery alarm that covers smoke and carbon monoxide without wiring or battery changes. It cannot be hardwired or interconnected per the listing, so each unit works alone.
A hardwired combination smoke and carbon monoxide alarm with battery backup, status lights and a hush button for homes with existing alarm wiring. It is not a standalone battery alarm.
Kidde 30CUAR Hardwired Smoke & CO Detector, 2 Pack
A two-pack of hardwired combination smoke and CO alarms with AA battery backup, status lights and interconnect for bedrooms and hallways. The AA backup batteries need regular replacement.
First Alert SC9120LBL Hardwired Smoke and CO Alarm
A hardwired smoke and CO combination alarm with a sealed ten year backup battery and latching indicator. It uses an ionization smoke sensor, so households wanting photoelectric sensing should choose another model.
A combination smoke and carbon monoxide alarm that installs without wiring and links to other Kidde alarms. Batteries need periodic replacement, and the interconnect works only with compatible Kidde models.
A hardwired, interconnectable smoke and CO alarm with dual smoke sensors and battery backup for whole-home alarm systems. Key details such as voltage, alarm volume and warranty are missing.
Power Source
Hardwired with battery backup
Sensor Type
Ionization and photoelectric smoke, carbon monoxide
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