No other gold-hunting detector can match the three-mode versatility offered by the Scorpion Gold Stinger™. Just a flip of a switch is all it takes to change from Non-Motion All-Metal operation, to Motion Discriminate and search for coins. Flip the switch again for true TR discrimination in order to accurately identify conductive ore. The Stinger's famous Groundhog (15kHz) circuitry is reputed for its extraordinary power to penetrate ground minerals in order to zero in on nuggets, placer, float and ore veins. The Gold Stinger manoeuvres remarkably well over complex ground conditions and in narrow cracks and fissures when nugget and placer searching. Also works very well on the beach. Specifications : Length: 42” to 51” – Adjustable, Weight: 1.5kg (3.3lbs), Single frequency operation: 15kHz, Power: 3 x 9v batteries (included), 2 Year warranty.