Kidde Carbon Monoxide Detector: $12

Amazon has Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup (KN-COP-DP2) on sale for $11.84. Free shipping with Prime or on $25+ orders.

About this product:

• CO (carbon monoxide) detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.
• 85dB (decibel) alarm alerts of fire
• Easy & quick installation: plugs directly into your home’s standard wall outlet.
• Protects during a power failure: two AA batteries (included) provide backup service in the event of a power outage.
• 120-Volt
• UL Certified
• 10-Year Limited Warranty