Long life optical smoke alarm

This alarm possesses detectors that are triggered when the small beam of light in the alarm chamber is reflected by smoke particles. They react especially fast to large particle smoke, often resulting from the slow, smouldering combustion of bedding, sofas, paper and wood. Battery Operate 10 Year life means you never need to change the battery Optical sensor reduces nuisance alarms from cooking fumes Hush and Test button Loud 85dB alarm Battery < fixings included 10 Year Guarantee Certified to BS EN 14604: 2005