Detector de metales a control remoto...

This is the recently patented remote-controlled metal detector
called 'Decima' - after its inventor -- Decima Watkins. This machine is
a godsend for people who love metal-detecting because it does all the
hard work for you. Metal-detecting involves a lot of walking about,
which tends to be quite exhausting after a while. But with the Decima
machine, you can sit down with the remote-control while you send the
machine off to find the treasure for you! This machine is fast,
easy-to-operate and extremely accurate. In the last year it has been
used to uncover over £2,000 worth of modern coinage, as well as over
5,000 rare coins and other valuable artefacts dating as far back as the
14th century, and even some from the Roman period.

The machine
can move forwards and backwards, left and right - just like a
remote-controlled car. The detector-rod sweeps automatically as it
moves, simulating the motion of a manual operator. It can differentiate
between different types of metal, including iron, tin, silver and gold.
When the machine finds something of value hidden underground, it
provides an audio alert and drops a fluorescent ball at that site, so
you can return to that spot later to see what's hidden there. The
machine also has powerful headlamps and laser lights on each side to
make it easy to use after dark.