Fire Angel ST-620 DE Thermoptek smoke detector 'Stiftung Warentest 01/2013 performed best with a score of 1.9 Good' 10 years without battery replacement ready
As almost standard, was delivered very quickly. Test function Impeccable. Installation quick and easy. So far, everything was perfect. Unfortunately, long-term experience are still missing. Our neighbor is at the fire department, which has bought for