It's why I never use wireless stuff in my security business. And if I have to, get the most expensive stuff on the market.
Radio is too variable. Noise levels change. I have a garage door some two hundred feet from the house. Most days, using a transmitter from the other side of the living room is not a problem. Some weird days (usually the sunniest) , standing next to the window, holding the transmitter in all kinds of positions will finally get the door to open. Such is the wireless world. Nothing physical has changed outside. That's not something I want for security. I use an underground, wired vehicle sensor, with direction logic and lightning detection. Made by Sure Action.
I have used everything for detection, Beams, Infrared, microwave. Animals will soon make you disregard the thing in the middle of the night, so what's the point. Finally decided on vehicle detection, and they do make solar powered versions. And companies like Innovonics do make high quality alarm links.
At one time, I was thinking of specializing in such things but decided my sanity was more important! Over the years (decades) I bet I made so many trips up and down our thousand foot driveway to service, check or change various systems, it would probably equal the distance to the moon!
Just a hint though, Anything usually works when "testing" it.