Black Metal Detector with MultiAntenna Handheld Positioning Metal Detecting Tool AC Item Type: Metal Detector Material: Aluminum Alloy Color: Black Built-In Lithium Battery: Rechargeable (Lithium Ion Battery, 12.6V, 1000-1600mAh) Uses: In addition to military applications, it is also widely used in security inspections, archaeological treasure hunting, and mineral prospecting. Search Range: 1200M Detection Depth: 25M Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Application: Metals Including Gold, silver, copper, and gems with high metal content can be scanned. It cannot detect other metals. Function: The product has its own degaussing function (as long as the probe of the receiver is close to the ferrous metal and the alarm is three times, it can be degaussed) Charging Time: 5-8h How e: 1. Hold the instrument, scan in an arc very slowly, and rotate yourself together. At this time, the prospector's elbows should always be firmly attached to the sides of the body, and it is enough to rotate about 40 to 60 degrees. Note: The prospector must rotate slowly and maintain a steady body. 2. Standardize your scanning actions. First of all, let the receiving antenna be properly extended after opening. Make the receiving antenna directly in front of you, open at 90 degrees to your body, and not deflect to the left and right. 3. When the antenna is aligned with the target, the instrument will confirm it, even if you cross the target and continue to explore. When you feel that this determination is effective, you keep this direction in mind. Then, move the instrument to the left or right about 10 meters, and repeat the process of determining the policy just mentioned. Observing the determined direction this time, the intersection of the two directions is the buried position of the target. 4. If you feel that there is a certain deviation in the specific position that has just been measured, you can determine it from another point of view. If the target is within 10 meters, you will slowly and steadily follow a prescribed route. When you pass the target and you are directly above it, the antenna of the instrument will shake on both sides. The position measured at this time is very accurate. (Please refer to the manual for specific operation instructions)