Leaderboard

No, I'm in the English, we don't do that sort of thing... In his part of the world they probably, have dead dogs in the street, open sewers & wire alarm funny.... Was it Prestatyn ?

How long is the resistor that goes from Z1 to A?

Buy a dog....

Better passives with resistors built in is an option too.

Forget this drawing , as jw already said what you done is ok

External sounders are overrated in my opinion, they get ignored 99% of the time, unless you count the complaints from neighbors when it does go off, and they are one of the first things to go wrong. If you have an alarm installed already get someone to service it, fit loud internal sounder (to scare anyone inside) and a dialer to call you, it will be more reliable than a Ring system and you wont get anyone hacking into it and watching your missus in the hallway