best wired smoke alarm

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$22.49

Keep your family safe with this easy to use, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
A loud 85-decibel alarm sounds when CO levels reach dangerous levels
To ensure complete protection make sure to place one on each level of your home and in each bedroom
5-7 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
Dimensions (Overall): 3.38 Inches (H) x 4.87 Inches (W) x 1.56 Inches (D)
Weight: .45 Pounds
Features: Silences Unwanted Alarms
Package Quantity: 1
Requires Hardwired Installation: No
Battery: 1 9-Volt Alkaline