There's something about the impossible cleverness of metal detectors that has us all a-quiver down here in the lab at Gadgetshop HQ. Maybe it's the way they squeak and whine like R2-D2 on acid, or maybe it's just the way that they can tell when there's metal deep underground, when it's invisible to the naked eye. It's the stuff of boy's own adventures and wartime derring do. And it's bloomin' marvellous.

Yet this metal detector isn't any old metal detector. It's the veritable Daddy of the Metal Detectors. The Big Chief Detector of the Metal Tribe. It is the National Geographic Metal Detector, so it must be good.

Designed to perform on all one's metal-detecting escapades, it's lightweight and perfectly balanced with a fully adjustable shaft and foam grip, making it easy to handle over those extended treasure hunting expeditions down at the local landfill site. It has a water-resistant coil, enabling you to get down and dirty in all sorts of wet and muddy places.

But, crucially, it's simply bristling with technological gizmology that would keep even the most cynical gadgeteer happy as a pig in clover. With audible signal strength information, a large VU meter, advanced ground cancellation circuitry (to weed-out the effects of ground-based minerals and salts) and a headphone jack for no-noise detection, it's a treasure hunter's dream.

Go forth, find a ploughed field, and remember that possession is nine tenths of the law.