Teach you how to buy underground metal detectors ?
 Here, the analysis of the purchase of metal detectors mainly depends on two points. First, the reputation of metal detectors is to evaluate the people who bought such metal detectors. The second is to look at its practicality, that is, how to use this metal detection. What you use to do it, what is targeted, different metal detectors for different locations, different supply ranges.
*, the purchase of the machine must first choose a credible, regular large company to buy, do not covet cheap, find a small company or individual purchase. After-sales and quality are essential for the treasure. Especially for friends who order online, Nanning Shoumen God reminds me: Don't be greedy and cheap, easy to be deceived!
It is recommended to choose whether to simulate signal detection or digital signal detection before purchasing. The underground metal detector of general digital signal is more sensitive. Detection is based on the molecular frequency of each metal. The users of Shanghai underground metal detectors are quite a lot in the country. Their buying experience is quite rich.
A wide range of underground metal detectors are generally used by medium professionals. The advantage of this type of instrument is that it can detect a wide range of search locks, can accurately locate, and can identify the type of metal separately, which is not achieved by small-scale underground metal detectors . It has achieved the ideal characteristics that can not be achieved by small-range detectors. Disadvantages: Not everyone can operate, the operation of this detector must have a certain degree of patience and strength. Before using, the two hands must be stable. The person who shakes hands is not recommended to use this. This is based on the human body's conductive work. Everyone's physical condition is different, so the operation performance of this machine is very complicated. No certain professional knowledge is not enough.
Second, the main question is to see what type of metal detector you are buying. Is it a small-range detection or a large-scale detection? The machine is too simple to detect metal on the surface. The sensitivity is very low, and it belongs to magnetic wave detection, and the detection depth is shallow. It is recommended to know the performance of each machine before purchasing. To see which one is suitable for your use, you must consider it carefully. There is no technical requirement for small-scale detection. In the type of detector, zui is also simple and convenient. It is suitable for primary learning. It is characterized by simple operation, simple assembly, small detection range, easy carrying and detection. Strong maneuverability and accurate positioning. The disadvantage is that the detection range is small and has certain limitations.
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