FIRST ALERT GCO1CN GAS AND CO2 ALARM PLUGIN

First alert combination explosive gas and carbon monoxide alarm with backlit digital display. Featuring a backlit digital display, this explosive gas and CO detector plugs into any AC outlet with no additional mounting hardware needed. Designed to promote peace of mind and household safety, the GCO1CN combination explosive gas and carbon monoxide alarm accurately senses the presence of methane and propane. It also features an advanced electrochemical CO sensor that detects carbon monoxide leaks from a variety of sources, such as faulty fuel-burning appliances, blocked chimneys and cars left running in the garage. When the alarm detects a threat, it alerts you with a loud 85 decibel alarm.