First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Display

Price: $44.49
(as of Sep 13, 2026 20:12:48 UTC – Details)


The First Alert CO710 Carbon Monoxide Alarm with 10-Year Battery and Digital Temperature Display detects dangerous carbon monoxide for up to 10 years. This carbon monoxide detector uses an electrochemical carbon monoxide sensor, the most accurate CO detection technology available, to detect the CO you can’t see, smell, or taste in the air. A built-in 10-year lithium battery means you never need to worry about changing batteries during the lifetime of the alarm. This stylish CO monitor is designed to sit on top of a dresser or tabletop, and it has a backlit digital display that clearly shows the ambient temperature, as well as current and peak CO concentrations. An 85-decibel horn sounds if carbon monoxide levels are too high, and a test/silence button silences the alarm and allows you to test its functionality.
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
All first alert CO alarms are rigorously tested to meet UL standards
First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
First Alert warranty extends ten years from the date of purchase with proof of the original sales receipt and the product should be free from defect in material and workmanship
Customers find the carbon monoxide alarm reliable and easy to use, with no installation required and a temperature gauge that’s spot on. They appreciate its 10-year battery life and consider it a fantastic investment to save lives, with one customer noting it works right out of the box. While some customers report it lasting 10 years, others mention it only lasts 4 years.