M
MakGras
I had fire angels battery powered alarms which I threw away cos they don't work anymore. The electrician is not happy and got in touch with surveyor and am awaiting answer. Electrician has installed hundreds of Aico EI650/EI603 RF wireless interlinked alarms and wants to do the same in my house. According to the regulations Grade F1(below) they are compliant.Which alarms did you have in place?
Eg make, model.