Sell Fireangel ST-622T 10 Year Thermally Enhanced Optical Smoke Alarm, White best price

About this item Thermoptek multi-sensor rapidly detects fast flaming and slow smouldering fires Smart silence - silence false alarms Toast proof - reduces nuisance alarms Thermoptek optical smoke sensor Product life span: 10 years: Battery life: 10 year sealed for life battery Certified to BS EN14604: 2005 Description The Fireangel ST-622T is a 10 years sealed battery powered alarm equipped with the thermoptek muliti-sensor. The alarm responds twice as fast as a normal optical smoke alarm. The alarm's thermoptek sensor combines the optical sensing technology with a thermal enhancement to detect both fast flaming and slow smouldering fires. It constantly monitors for temperature change and if a sudden rise in temperature is detected the alarm sensitivity is increased. This smoke sensor makes it the technology of choice for the UK's fire and rescue service