First Alert’s Carbon Monoxide Detector has a built-in digital thermostat for $27 shipped


Amazon offers the First Alert Carbon Monoxide Detector with Digital Thermostat and 10-year Battery for $27.12 shipped. As a comparison, that’s at least 25% off the regular going rate and a match of the Amazon all-time low price. This multifunction device keeps track of carbon monoxide levels but also relays temperatures via a digital display. Features a 10-year battery and warranty, so it’s really just a “place in your home and forget about it” kind of purchase. Rated 4.2/5 stars.

Ditch the built-in display and save even further. This First Alert option without the temperature feature is on sale for $18 currently. It’s a great way to keep tabs on your home for less.

First Alert Carbon Monoxide Detector features:

  • Keep your family safe with this easy to use digital-display, 10-Year battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there’s a power failure
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured
  • Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • 10-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety

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