National Geographic metal detector The digital metal detector from NATIONAL GEOGRAPHIC is the ideal entry-level model for treasure hunts at an affordable price. Dealing with the metal viewfinder is quickly learned: simply guide the search coil parallel to the ground in slow, snake-shaped swivelling movements. An acoustic signal indicates a find. With 3 different pitches, even the type of metal found can be deduced. The LCD display also shows the type of metal and the depth of the search object. This saves unnecessary digging for worthless metal scrap. You can also completely exclude this from the search. For this purpose, the metal finder is equipped with 3 search modes , with which you can determine which types of metal should be displayed and which should be ignored. Specifications Colour: black Gender: unisex Material: steel Dimensions hand buckle: 100 - 125 cm (adjustable) Search depth: 20 cm Battery: 2 x 9V (not included)