Aico 230v mains powered smoke alarm at UK Electrical Supplies
TES Lighting - The Ei141RC Ionisation Smoke Alarm is a mains powered alarm with a 9V Alkaline battery back-up and contains a proven long life Ionisation smoke chamber. Different alarms sensors work
EI168RC | Aico | Radio Link Base | Superlec Direct
Aico EI141RC 230V Mains Smoke Alarm with Easi Fit Base and Back- Go Sparky