20 minutes ago, Mike. said:

Blearing a siren down my street and annoying the neighbours whilst I'm blisfully unaware is not a useful security system in my eyes.

Systems that are unmaintained or poorly fitted will cry wolf but unfortunately there is nothing forcing people to have systems serviced regularly or fitted to any standard.

 

There are noise pollution regulations but you would have to be regularly disturbing the peace for the council to get an order to contract someone to force entry to silence it.

 

It's all a false sense of security IMO, at least if a traditional system with an app failed to get the message to you the system would work as expected to deter the burglar from hanging about.

A link to someone doing similar on HA

https://community.home-assistant.io/t/smart-implant-to-give-new-life-to-an-old-burglar-alarm/244989

We have over 200 selfmon users using home assistant with galaxy. Keypad, logging, zones, outputs and control. No messing with relays or crappy slow apps.