Amazon Key delivery entry

Secret Alert on either a door sensor or a motion sensor.  It will never sound the alarm, but will let you know when the door has been opened.  Pair it with a camera to record exactly what happened while the door was open.  

I use a standard door sensor mounted on my garage door.

@simplistuckon I use a door hinge with a sensor mounted on it. How did you install your gagage door opener sensor? (I also have the Chamberlain IQ but use it only to open and close the door.

This decade-old thread asking SS for a purpose-built garage door sensor:
https://simplisafe.com/forum/customer-support-forum/installing-and-using-simplisafe/amazon-key-delivery-entry

I posted in it a couple years ago with links to some pictures of my installation, and of a hinge-mounted solution like yours.