My field is Security and I've kept a Fisher metal detector in my truck numerous times but concealed under a movers blanket and an old bedspread to lessen the vibration that can rattle a detector to pieces in case I chance upon a detecting opportunity. Photos shown are that of a Electric Pencil that can still be found at Harbor Freight for about $10.00. If you buy something that you will keep for eternity then engrave your Driver's License number with the state either under the battery lid or on the aluminum shaft. On guns, I use those address sticky labels you get free in the mail from time to time. Take the grips off and stick a label on the inside of the grip. Usually those labels have your name and address on them. You can stick one under the battery lid of the metal detector too. During hurricane season, I stuck those things on everything I considered valuable in case a tornado sucked everything out. Most thieves don't take the time to take something apart to see if there is ID hidden. They need money and fast.
There was a reason that a thief breaks into a vehicle is because they looked into the vehicle and saw something valuable enough to break into the vehicle. Out of sight, out of mind. Leave your golf clubs or metal detector on the back seat of a car, your wife's handbag on the seat, a GPS on the windshield or dash are graven invitation for car thieves to Smash and Grab.
Never leave your car running as you dash into a store for a minute or you might find yourself on foot.
The economy sucks and crime is rampant so as a consumer you must be on constant alert. I hope someone finds your metal detector