Battery powered optical smoke alarm with a 10-year sealed lithium battery for fast and reliable smoke detection. Can be either wall or ceiling mounted. Display prominently shows the word 'Alarm' when activated. Features advanced optical sensing technology, ideal for detecting slow-burning fires while reducing nuisance alarms from cooking. Powered by a tamperproof sealed battery to ensure uninterrupted protection. Easy-access front cover doubles as a test and silence button for simple operation. Night mode automatically dims the LED indicator for undisturbed sleep, while Sleep Easy silences low battery alerts for up to 10 hours. Ultra-slim design ideal for homes and leisure accommodation vehicles. Standalone 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Ultra-Slim Design Easy Access Front Cover Displays the word 'Alarm' prominently when the alarm is activated Optical Sensing Technology Reduces Nuisance Cooking Alarms Standalone 10-Year Seale...