First Alert CO400 Carbon Monoxide Detector, Battery Operated, 2 Pack (2 Count) (Pack of 1)

This 2-pack of First Alert CO400 Carbon Monoxide Alarms provides vital protection against carbon monoxide (CO) threats in your home. Each battery-operated unit uses advanced electrochemical sensors to detect CO from sources such as faulty appliances or blocked chimneys. With a loud 85-decibel alarm, the detectors alert you promptly when CO levels are elevated. The easy installation requires no electrician; simply insert the included 9-volt batteries to activate them. Each alarm has a single button for testing or silencing the unit and includes an end-of-life signal to indicate when replacement is due. Carbon monoxide is colourless and odourless, making detectors essential for safety, and it’s recommended to place one on every level of your home and in every bedroom for complete coverage. This device is UL-listed, compliant with current CO laws in California, Wisconsin, and Oregon, and includes a 5-year limited warranty. The product dimensions are 10.2D x 22.9W x 15.2H centimetres.