Teknetics Gamma/Gold Metal Detector. The Gamma Metal Detector is the perfect metal detector for treasure hunting coin shooting cache hunting and gold prospecting. The Teknetics Gamma includes LCD target readout Numeric Depth Display Low Battery Indicator Progressive Discrimination and more. Teknetics Gamma Metal Detector is available in the following options: Teknetics Gamma Gold Metal Detector Specifications for Teknetics Gamma / Gold Metal Detector: Manufacturer: Teknetics Included Accessories: Standard Water Resistance Level: Waterproof Coil Finish: Black Battery Type: 9v Battery Life: 15 - 20 hours Battery Quantity: 1 Weather Resistance: Waterproof Features of Metal Detector Gamma Teknetics: LCD Target Readout Numeric Depth Display Low Battery Indicator Progressive Discrimination Ground Grab 3-Tone Audio Discrimination Preset Ground Balance Sensitivity Adjustment 8-Inch Open-Face Coil System Package Contents: Teknetics Gamma / Gold Metal Detector Teknetics GAMMA-EE: Teknetics Gamma/Gold Metal Detector GAMMA