Feature:1. Underground metal detectors are mainly used to detect and identify metal objects buried in the ground.2. Using intelligent operating system, it has the function of distinguishing ferrous metals and non-ferrous metals.3. Equipped with ground balance line, which can eliminate the influence of "mineralization reaction".4. Using high-strength ABS material, light weight and long life. With a headset, you can hear the sound of metal detection more clearly.5. It can be widely used in safety inspections, rapid searches, detection of metal foreign bodies in raw materials, fuels, and food, inspection of metal objects in mail and luggage, exploration of underground pipelines, cables, archaeology, prospecting, and discovery of buried gold and silver Treasures and metal artifacts.Specification:Item Type: Underground Metal DetectorMaterial: ABS PlasticBattery: 6 x AA batteries (NOT INCLUDED)Current: Minimum 65mA, maximum 150mAWorking Voltage: 7.1-9.6VSignal Frequency: 7.5KHz+/-1KHzWorking Environment: -20-60Size (L x W x H): Approx. 540x345x150mm/21.3x13.6x5.9inHow to Use: 1. Assemble the metal detector, connect the probe to the lower pole, and connect the upper pole to the lower pole.2. Install 2pcs 9V dry battery (not included) on the controller.3. Press MOOE, SET, ENIER, POWER to adjust according to the panel keys..Package List:1 x Probe Disc1 x Controller1 x Handle1 x Earphone1 x Instruction