Explosive Gas & Carbon Monoxide Alarm 1039760

This 3-in-1 Explosive Gas & Carbon Monoxide Alarm warns against methane, propane and carbon monoxide. It plugs into any standard outlet and comes with a battery backup in case of power outages. It uses an electrochemical carbon monoxide sensor for superior accuracy and increased peace of mind.

• Plug-in
• 3-in-1 Protection: CO, methane, propane gas
• Current and peak CO levels available on backlit digital display
• 9V battery included
• Electrochemical sensor
• Test/reset button
• UL listed