NOTE:  Home Safety Store is no longer selling Ionisation Smoke Alarms.  We will only be supplying Photoelectric Smoke Alarms. Ionisation smoke alarms detect smoke using ionisation sensing technology, which comprises of a manmade radioactive element called Americium 241. This ionises the air around it, and as a result, makes excellent conductivity possible. With ionisation smoke … Continue reading Ionisation Smoke Alarms