Cell phone blockers if you could - cellular blockers list template
From what you have said here I guess that you probably don’t want to break into the walls and make other destructive actions ruining your home in search for those hidden spy cameras, right? If it is true then don’t worry, there is a way to stop this crazy stalker annoying you and trying to ruin your life in such a perverted way. In order to forget about those hidden cameras you can use any of hidden spy camera jammers, be it portable model or the desktop one.
As for the GPS tracker, just place this jammer into your car’s electric lighter and it will safeguard you from all kinds of GPS tracking systems. By the way, it is quite possible that those hidden cameras are also installed in your car. Thus it is probably better for you to use portable hidden camera jammer because it has car power adapter thus it can be used while you are driving.
I hope all this information would be useful to you and would help you to get rid of that stalker! ;)