One of the PIR's fitted to my HSA3800 Yale alarm keeps going off in the middle of the night for no apparent reason
Can anybody advise the best way to find out what the fault may be. There is nothing in the room that can move and it is not over a heater etc.
Any advise would be appreciated
Can anybody advise the best way to find out what the fault may be. There is nothing in the room that can move and it is not over a heater etc.
Any advise would be appreciated