Does anyone have recommendations for garage door and man door sensors?

I've got two garage doors and a man door that I would like to monitor, and I wouldn't mind having a couple of occupancy sensors.

It doesn't need to connect to any smart home stuff but that wouldn't be a bad thing, either.

@douglasvb I like the sensor that came with my August smart locks (retrofit on any existing deadbolt, no swap required). For garage door it's just what came with my opener I suppose.

@darkuncle the opener on these doors is about 15 years old and we're not going to be replacing it so I think I'll have to get some independent sensors 😬

My parents garage door has the new modern sensors built in which is probably similar to yours and it's pretty useful!