Metal Detector Precise Positioning Underground Metal Scanner Gold Silver Copper Finder Item Type: Metal Detector Material: Aluminum alloy Search System: Microcomputer processor control and reflection conductivity Search Range: 1500 meter Detection Depth: 25 meter Detector: 12V lithium battery x 1, battery capacity: 1600mAh (built in) Receiver: 12V lithium battery x 1, battery capacity: 1600mAh (built in) Transmission Frequency: 5.6-6KHZ Signal Frequency: 360-440Hz Detection Type: Gold, silver, copper, stone Charging Time: 10-12H Detection Depth: Maximum Detection Depth: About 25 meter This instrument can detect at least 3.5 meters for an object of 5cm x 5cm. For an object of 30cm x 30cm, it can detect 5-8 meters, and if an object of this size is buried for a long time, it can achieve 12 meters. If the area of an object is larger, its detection depth will deepen. Function: It can accurately determine the burial position of objects and can locate them. It can also rely on frequency regulators to identify specific types of metals. How e: 1. Tilt the searcher up 1-3 degrees; When holding the searcher, hold your hand tightly and do not shake it; When walking, pay attention to the scanning speed. If the speed is slow and the movement is not enough, it will not polarize the instrument. And if the speed is too fast, it will hinder the detection of objects. 2. Scan very slowly in an arc while rotating yourself. At this point, the elbow of the detector should always be tightly pressed against both sides of the body, and it should be rotated approximately 40 to 60 degrees. Attention: The detector must slowly rotate and maintain a stable body. 3. Standardize your scanning actions. Firstly, ensure that the receiving antenna is properly extended. Place the receiving antenna directly in front of you, at a 90 degree angle to your body, and do not deflect to the left or right. 4. When the antenna is aimed at the target object, the instrument will lock, even if you step over the target and continue to detect. When you feel that this lock is effective, remember this direction. Then, move the instrument about 10 meters to the left or right and repeat the process of locking the target as mentioned earlier. Observe the locking direction this time, and the intersection of the two directions is the burial position of the target object. 5. If you feel that there is still a certain deviation in the specific position just measured, you can lock it from another angle. If the target object is within about 10 meters, slowly and steadily follow one of the designated routes. When you pass the target and are directly above it, the antenna of the instrument will sway on both sides. At this point, the measured position is very accurate.