Remote Metal Detector 20M Depth 1000M Search Range 6 Antenna Metal Finder Scanner Item Type: Metal Detector Material: ABS Host Battery (Shipped with built in battery): NiMH rechargeable battery, AAA, 1600MAH Emitter Accessory Battery (Shipped with built in battery): NiMH rechargeable battery, AAA, 1200MAH Search System: Microcomputer CPU control and reflective conductivity Search Range: 1000M Detection Depth: 20M Emission Frequency: 5.6-6KHZ Signal Frequency: 360-440HZ Detection Type: Gold, silver, copper, jewel Plastic Box Size: Approx. 323 x 280 x 118mm / 12.72 x 11.02 x 4.65in Power on Test: 1. Open the host and search instrument switch, search instrument on the work indicator will flash; when the host selects the copper gear, the search instrument on the corresponding gold indicator will light, in turn, select the host on the other silver, adamas, jewel gear, the search instrument on the corresponding indicator will light. 2. If the host selects the gear, and the search instrument on the corresponding light does not light, the host and the search instrument may not have enough power, need to charge. 3. The above situation is normal, the instrument is normal, can be used without worry. Working State: 1. Fully charged, the antenna is installed, open the host detector, sensor on, press the sensor needs to detect the items corresponding to the button, adjust the host detector to adjust the depth and range search function for detection;. 2. In the case of handheld stable without other interference, detection to the specified detection of items will be left and right swaying, detection of larger items when the amplitude of the swaying action will increase.