My remote setup has a Z-Wave Ecolink contact sensor on the main entry since last December with absolutely no issues. Battery still reporting 100%.
More about this setup here…
A few months ago, I scored a couple of the GoControl security packs on close-out at the Home Depot. Added two of their Z-Wave contact sensors on a couple of sliders in July: will see how they hold up over time…
Like @JDRoberts says, ST just isn’t ready for use as a security system. I agree with his reasoning.
In spite of that, LOL, I’m building an interface to our smoke alarms at the primary home so I can be notified if they alarm while we are away. But I wouldn’t dare have it automatically call the fire department
Also have a couple of sirens. They sit in the box they came in…