"John Larkin" wrote in message
...
Firemen could use this for smoke penetration, or cops could spot bad
guys in the next room, and I could spot cats under beds without having
to crawl around on the floor.

You can already buy these devices, but of course the price tag is still rather
high (possibly something like $50k/unit!? -- I visited the booth of a company
selling them a couple years back now, and they were targeting fire departments
and other government funded agencies that had that kind of money to throw
around).

Super stud finders would sell like hotcakes once you got them to the $500
level. Even at $2500 you'd probably get plenty of takers. But at $50k... not
so much.