Feature:1. HIGH SENSITIVITY: Underground metal detector, combined with high sensitivity to small gold nuggets, can quickly detect metals and treasure hunting.2. DESIGNED FOR GOLDEXPLORATION: equipped with a complex ground balance system, individual control of signal gain and threshold, and a unique identification control system.3. IDENTIFICATION MODE: After using the identification mode to identify the target, press and hold PINPOINT button to identify exact location of target and provide information about the shape and size of target.4. WATERPROOF SEARCH COIL: Adopting the working principle of VLF induction balance, it is sensitive and quick, suitable for beach, garden, forest, lawn or mountain area.5. LCD DISPLAY: The control box is equipped with a LCD display, which greatly simplifies your metal detection process and makes metal detection more efficient and easy.Specification:Item Type: Metal DetectorMaterial: ABSModel: T850Battery: 6F22 9V x 1 (Battery Not Included)Purpose: Metal DetectionWorking Principle: VLF Induction BalanceOperating Frequency: 19 KHzReactive Overload: 10,000 Micro-cgsResistance Overload: 1,200 Micro-cgsGround Balance Range: From ferrite to salt waterWorking Temperature Range: 14-122℉ (-10 - +50℃)Operating Humidity Range: 0-90% Non CondensingCoil Characteristics: High SensitivitySpecial Functions: Ground balance system, signal gain, individual control of threshold, identification control systemAssemble the detector according to the instructions, select the mode and sensitivity after assembly, and then start the measurementTarget Verification:Once the target is detected, do the following:1. Walk around the target.2. While surrounding the target, continue to sweep the search coil over the target.3. Sweep once every 30° or 40°.If the alarm does not change when the target is delineated and the Target-ID value remains the same, the identification of the target can be determined; if the alarm or Target-ID value changes when the target is circled, there may be multiple targets or objects with irregular shapes .Identification Mode:After using recognition mode to identify the target, press and hold the PINPOINT button to identify the exact location of the target. This technique can generate more information about the shape and size of the target, and it can also find its exact location for easy extraction. Find out as follows:1. Place the search coil just off the ground and on the side of the target.2. Now slowly move the search coil on the target; you can find it by sound. The target is located directly below the loudest.Narrow Down:1. To further narrow the response range, position the center of the search coil near the center of the response pattern, but not directly above the center.2. Release the PINPOINT button.3. Press and hold the PINPOINT button again.4. Repeat this reduction procedure to further reduce the detection range.Note: The depth indication is not accurate after zooming out.Precise Positioning in Discrimination Mode:1. Sweep the target in narrow-edge mode.2. Visually inspect the location on the ground where the "beep" sound occurs.3. Move 90° to the target side.4. Scan the search coil in the same area, at 90° to the first scan pattern.5. Use "X" to pinpoint the target position..Package List:1 x Control Box (Battery Not Included)1 x Sponge Armrest1 x Search Coil1 x Handle2 x Metal Rod1 x Fixing Bolt1 x ManualNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Do not use it indoors, this detector is for outdoor use only. Many household appliances emit electromagnetic energy, which can be demonstrated indoors. The gain can be reduced to keep the search coil away from computers, TVs, microwave ovens and other electrical appliances.