'Works wonders:' This smoke/CO detector has hundreds of positive reviews and it's on sale for just $37

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Keep your home safe and save 33 percent! (Photo: Amazon/Yahoo Lifestyle)

You can never be too safe. While most homes have a smoke detector, not many have a carbon monoxide detector as well. Carbon monoxide is known as “the silent killer” because it’s colorless and odorless. You may not even know you have a problem until it’s too late.

A good and reliable smoke detector that also detects carbon monoxide just might save your life. Fortunately, the First Alert smoke and carbon monoxide detector is on sale for $37, or $18 off its list price.

Usually priced at $55, this smoke detector/CO alarm features a flashing LED indicator light that blinks whenever it senses carbon monoxide or large smoke particles. The detector also features an 85-decibel siren that provides a clear warning of a gas leak or a fire in your home.

Meanwhile, the unit is battery powered, so it will still work even during a power outage. Don’t worry — two AA batteries are conveniently included. The detector is easy to install with just two screws for your ceiling or wall, and it also boasts test and low battery features — the alarm beeps or chirps whenever you push the “test” button or when it needs a fresh pair of batteries, respectively.

First Alert Combination Smoke and Carbon Monoxide Detector (BRK PRC710)

Save $18! (Photo: Amazon/Yahoo Lifestyle)

Shop it: $37 (was $55), amazon.com

“Well, they did their jobs,” a happy reviewer noted. “I had a fire in our fireplace that was almost out, down to the coals, so I closed the damper and went to bed. An hour later ‘BEEEBEEEBEEEBEEEP.’ I looked at the alarm, and the CO LED was flashing. Oops, I guess the coals weren't as dead as I thought. It woke me up and the wife. I've also had it alert to smoke from me accidentally letting a damper close while there was a full-on fire and smoke began to fill the room. Again...oops. I am glad to know they work, and, while I've been aware of the sources of my troubles so far, I am confident these will alert me if there is some real trouble happening.”

Another five-star Amazon reviewer added, “Works wonders. It definitely detects both. I’ve had a few instances where’s it’s alerted me to things burning in a timely manner.”

Shop it: First Alert Combination Smoke and Carbon Monoxide Detector (BRK PRC710), $37 (was $55), amazon.com

The reviews quoted above reflect the most recent versions at the time of publication.

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