By Andrew Liszewski
At first glance, wandering the beaches with a metal detector looks like it might be a relaxing and profitable hobby. But from my own experiences, you usually end up spending most of your time digging up bottle caps and other refuse, rather than buried pirate treasure. But this Discriminating Metal Detector can actually differentiate between 9 different types of metals, and using a set of tones or the LCD display, it will indicate whether or not the object in question is actually worth digging up. (i.e. Pull tabs vs. silver dollars.)
The open coil design is completely waterproof and it can locate coin-sized objects that are buried up to 8 inches below the ground, or larger objects as deep as 3 feet. It also uses something called “ground balancing technology” to prevent false signals when used in areas where there’s high concentrations of minerals or severe ground conditions. The whole thing, including the LCD display, is powered by just 2 x 9-volt batteries which should keep you scouring the beaches for up to 20 hours.
The Discriminating Metal Detector is available from Hammacher Schlemmer for $199.95.