Paul Barford wrote:
Indeed perhaps we should accept that no responsible detectorist
needs to buy such a machine as they do not need to be able to detect deeper
than the base of the topsoil. It would seem therefore that this is one
criterion by which one can differentiate the "responsible detectorist" from
the ones that damage archaeological sites, do they own one of these
detectors? Did the website say how many had been sold?
One only wonders how many have been sold. I gather they do however retail at
over 400 GBP. Though there must be a demand for a company to develop and
construct such a thing.
Supposedly it is also good for finding well and tunnels.