lug-in carbon monoxide detectors with battery operated backup and backlit digital display. These detectors plug into standard outlets without additional mounting. Plug-in cord offers multiple placement options. Battery operated backup ensures alarm works even during power outages. Digital display illuminates hazard level when in alarm or when any button is pressed. Remote mute silences nuisance alarms by pressing any button on a standard household remote control (remote not included). Single button also tests alarm functions. Utilizes electrochemical sensor for increased accuracy. 5-year limited warranty. Meets UL standards.