Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-in Wall with 9-Volt Battery Backup, Digital LED Display

Easy Installation – simply plug-in to a standard, 120V outlet in your home
9-volt battery backup provides protection during a power outage
Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states “GAS” when explosive gas is present
85-decibel alarm announces when carbon monoxide or explosive gas is detected
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested