Hi,

I do a lot of work drilling through the floors of vans and its always a pain having to measure out where the chassis rails are. I was wondering if anybody knew of a tool where you had a sender and a reciever. I could hold the sender on the underside whilst a second person uses the reciever to locate the sender to get pinpoint location on the top.

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I’d assume this would need to use something like radio waves to penetrate the metal?

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Cheers