If you are thinking about CHIMES, read this. They are very poorly intergrated, like an afterthought. If you just have a doorbell and one user, fine, they work.
I have multiple chimes, full security system with 35 sensors and 4 cameras. So, I have a lot of money in this stuff. After a month of installing and testing, I am amazed at some features and products but left unhappy with a few.
The chimes -
Only the owner can control them, mute them, etc. Shared users can not.
Muting a device does not mute the chimes, you have to do this independantly for all chimes.
The security system does not use the chimes at all, no countdown, not alerting, etc.
If anyone can tell me how to get the above functionality I’ll retract my comment. Until them, buyer beware.
Off topic but, no outdoor siren, come on, its an alarm system.