[moontear]

Introducing the „are they home“ device to assist burglars. Just slap that miniature device somewhere non-suspicious on the place of your potential marks and let it run for the battery life of 7 days. Afterwards you collect it and know movements patterns.

Features automatic notifications if no movement detected for more than two days.

[KolibriFly]

To be fair, that's basically a variation of techniques that have existed long before Bluetooth

[moontear]

I don't disagree, nothing new to see here. I just thought that this would be a nifty device to sell via nefarious shops. Include some more passive tracking of WiFi and bob's your uncle. Maybe add mesh functionality via LoRaWAN and track the whole neighborhood.