Battery powered standalone CO alarm for fast and reliable carbon monoxide detection. Can be either wall-mounted or free-standing. Features an advanced electrochemical sensor, providing early warnings displaying CO levels on its compact digital screen. Memory function indicates previous alarm activation, while Sleep Easy silences low battery chirps overnight. Offers flexible installation making it perfect for home or travel use. Supplied with 2 x AA batteries, which can be replaced when needed. Not suitable for residential properties in Scotland. Please refer to guidance. Standalone Replaceable Battery (Alkaline) 85dBA Alarm at 3m Test/Hush Button Compact LCD Display Screen 10 Year Sensor Life Multi-Function Display Provides Visual User Instructions Standalone Replaceable Battery (Alkaline) 85dBA Alarm at 3m Test/Hush Button Compact LCD Display Screen 10 Year Sensor Life Multi-Function Display Provides Visual User Instructions