This First Alert COBATT2 Battery Operated Carbon Monoxide Alarm 2 pack (Model CO400) uses a highly accurate electrochemical sensor to detect dangerous CO levels in your home often caused by issues with furnace, water heater, portable heater or car exhaust. Alarms include loud 85dB audible alarm, low-battery warning and end-of-life timer/alert. Mute button silences any nuisance alarms. Single button also tests alarm functions. Alarms meet UL2034 standards. Sold in pack of 2 - Model CO400 alarms.

• Functional alarm with battery backup
• Uses a highly accurate electrochemical sensor
• Mute button silences any nuisance alarms
• Pack of

Product Dimensions:

3.38 x 4.87 x 1.56 in

0.87 lbs

Shipping Dimensions:

3.00 x 6.75 x 8.50 in