Yep. Rather amateurish so would not rely on these ‘Smart’ alarms. If you do then make sure you have manual override fitted.
Smart alarms... Not so smart. https://www.theregister.co.uk/2018/10/19/yale_security_fail/
App works ok for me, ok the pc setup was better but they shut that. I upgraded from the telephone version with the same grey yale detectors and it took 30 mins to setup learning detectors. Only downside for me is you can't turn the internal sound off if it goes in alarm like the other so the dog gets it as well.
I got this (brand new) for £50 at a car boot (lol) . Couldn't believe my luck.
If you find one, please post!