As a residential carpenter, I've installed plenty of hardwired ... smoke detectors for sensitivity, audibility, and ease of installation, using an aerosol spray to mimic real smoke. Our top pick ...

It includes a CO detector ... only option (just hardwire), no ionization detector and a hefty $265 list price. Note: These ...

Carbon monoxide detectors are important because the gas is colorless and odorless, so it’s impossible to sense its presence ... For one thing, the hardwired smoke and carbon monoxide detector ...