First Alert CO400 Battery Powered Carbon Monoxide Alarm

First Alert CO400 Battery Powered Carbon Monoxide Alarm Review

First Alert CO400 Battery Powered Carbon Monoxide Alarm Feature

• Battery-operated carbon monoxide alarm
• Uses electrochemical carbon monoxide sensor--the most accurate technology available
• Simple to use silence/test button, low battery warning, end-of-life timer
• 2 AA batteries included
• 5 year limited warranty

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert CO400 carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. The permanent sensor lasts up to five years. It is powered by two AA replaceable alkaline batteries giving you peace of mind even during power outages. The test/silence button both silences the alarm and allows you to test its functionality. The unit monitors and re-alarms if carbon monoxide levels persist sounding a loud 85-decibel horn. No installation is required and the attractive design allows the unit to be placed anywhere you need it. It includes an optional wall mount with no outlet required. An audible and visual low battery signal alerts you to replace the battery. Pull down action chart has convenient guide on what to do if an alarm sounds. 5 year limited warranty. UL listed. --Bree Norlander

What's in the Box
One carbon monoxide alarm, user's manual, and two AA batteries