Explosive gas and carbon monoxide alarm. Detects natural and methane gas, propane gas, and carbon monoxide. Plug-in power and battery backup (9V battery included). Large digital display shows hazard and levels. Test/silence and peak level buttons. Convenient installation options allow you to plug directly into wall or can be mounted higher using line cord. Most accurate carbon monoxide sensor available. Approximately 6" W. x 3-1/4" H. x 2" D.
