Best alarm system for open hab

hi everyone, I use open hab for one years for my home and for my small factory
I have to install two small alarm system and I would connect it at open hub
Everyone know what are the best allarm system fior open hab?

I’m using Satel Integra64. Binding works very well. Of course you can easily use motion sensors from Satel for automations and it is possible to add external (other than connected to alarm system) motion sensors or swithes or anything to switch on burglar alarm.

satel integra is very expensive for small alarm system plant
do you Know other good products?