Amazon has this currently marked down to only $29.46 w/free shipping!
- CO detector with digital display & alert modes; 85 decibel alarm alerts of fire
- Electrochemical sensor technology – detects carbon monoxide & other forms of combustible gas such as propane & natural gas
- Easy to install – combo smoke and gas alarm is powered by a 120VAC wall outlet with 9V battery backup
- Low battery warning feature indicates when the battery needs replacement
- UL Certified, 10-year limited warranty
- Two alarms in one detects carbon monoxide and explosive gas
- Three convenient mounting options