Bug detector/Eavesdropping/Detector for GPS tracker?

Does anyone have any experience with any of these devices? Because I'm not sure of the actual name of these thingies, I'm asking about the machines that can find out if your car has a GPS tracker on it or if your room is bugged.

There are several available on Amazon, but are they really effective? In other words, do they work?

If you'd prefer to send me a private message with your personal knowledge that would be great and very appreciated.

I've had a few accounts hacked over the past couple of months, including a credit card account, and my cell phone has been acting strangely. I've also been getting notices from nearly all of my "fun" sites asking me to change my password because it looks like someone has been trying to access my account.

Plus, some personal bruhaha has been going on.

I'd like to know if there is a tracking device on my vehicle as well. It's doubtful but wish to check.

Any advice would be sincerely welcomed.

Always,
Elisabeth

They work, all you need is a sim card with those units, but there's other ways to track anyone/anything such as air tags, if someone really wants to find anyone these days, it's not hard

Download an app called “Fing”. Hook into a nearby Wi-Fi and you can see all the connections around you

Hire a Private Investigator who comes recommended from a Lawyer he/she will give you peace of mind and these folks are usually ex LE.

Use to be a spy shop on beltline a few blocks west of the Dallas tollway. They should have everything you need.