Leaderboard

You need to find out what detection there is on the system, at that age I wouldn't be surprised if it's a detector, a door contact and probably a (disconnected) pressure matt. Once you know this you can systematically work our what detection is in part set v full set. There may be a fused spur nearby, alternatively it can be done inside the panel but it hurt's if you get it wrong so personally I recommend you get someone over to check it out or even down-power it for you.

GGRrr grass doesnt grow on a busy street,....... and Loogan thinks people hate him

yeah !

It's junk , get rid of it

How can you recommend anything without knowing what they need. You need way more info. Also why not an spc or a dimension why a bottom end audible only limited panel made by a Chinese manufacturer?