that can automatically close and lock all of the doors in the school the minute a large enough piece of metal like a gun can be detected, with signals being sent to all rooms in the building, and to the security police of the institution involved.

We now have companies that have similar devices to detect explosives and can detect the gun powder in the guns shells and these devises should be used in conjunction with the metal detectors!

Asked by:Paul B

Can any modern metal detectors (civilian or otherwise) estimate the amount of metal it is detecting?

If this is true, can it also detect the amount of each individual metal it detects?

Example: If a penny was buried, could a metal detector tell the user that it detects X amount of copper, etc?

Asked by:rollobomb2256

Could you guys maybe recommend a good starter unit to buy or ideal places to go metal detecting? I’ve been watching some videos about it on YouTube but can’t seem to find a good starting point. All I know is it seems interesting and something I’d like to get in to.

Asked by:C