Works as advertised. Adhesive on the magnet is problematic for areas with temperature changes and/or bumpy track movements like on a garage door. (my case study). I made a little harness out of wire staple and self drill screws for the long haul.

Nifty little device. Took me a while to integrate it with HomeKit but it worked. Otherwise, the hue app works just fine if you have other hue Phillip products. Just remember you need the Phillips hub for this to work with lights and other products. Super easy to install. Security features seem vague.

It’s on my apartment door so I know when maintenance is going into my unit. The alerts to my phone are real-time so I receive the message as it happens. So no anxiety there. Nice.