I am looking to set up a sensor in my garage, which is located inside my apartment building, 5 floors below my controller (Home Assistant, with zwave, zigbee and RFXCOM interfaces, as well as a mysensors gateway, that is not connected yet, but has only a NRF24L01+ radio), which is inside my apartment. I live in the third floor, the garage is in floor -2.
I have been looking at RFM69, as well as RFM95 specs, that refer a 500 m / 2 km line of sight range (https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts 1). A mysensors implementation of a presence detector or a remote switch for the garage door would not be hard to do.
My question is: considering that the range I am looking for is much shorter than any of those (about max 30-50 meters in a straight line), but with a lot of concrete walls and iron structures in between the two points, do you think this could be a good solution?
If not, what would you advise for such application?
Thanks for your help!