metal detectorIt is a high-performance metal detector designed specifically for security purposes. In military applications, metal detectors can be used to detect metal landmines; In the field of security, it is possible to detect weapons and tools of crime that are carried or hidden on the person; In archaeology, it is possible to explore ancient tombs where metal objects are buried, and find gold, silver treasures, jewelry, or other metal products in the tombs.

Metal detector (underground metal detector)Except for the sensitivity adjustment potentiometer, there is no adjustment part in the circuit. As long as the soldering is correct, the circuit can work normally. When the whole machine is in a static state, that is, when the speaker does not produce sound and detects that the metal speaker emits sound, a new laminated battery can work for 20-30 hours.

Newly weldedmetal detectorIf it cannot work properly, first check whether there are any errors in the soldering of various components and wiring on the circuit board, then measure the battery voltage and power supply circuit to ensure that they are normal. Do not solder the first stage and the front and rear ends of the oscillation coil inside the detection disc incorrectly.

metal detectorBefore use, it is necessary to adjust the length of the detection rod. Simply loosen the black rubber tube, push and pull the rubber tube to the appropriate length, then rotate the rubber tube inside to tighten the cable and make the handle face up. Finally, tighten the black rubber tube and lock the rubber tube. In this way, when holding the detector handle, the thumb is right next to the sensitivity adjustment potentiometer.

When adjusting the sensitivity of the metal detector, the detection disc (oscillation coil) should be kept away from the metal, including paper with aluminum foil. Then, turn the sensitivity fine adjustment potentiometer knob to turn on the power switch and rotate it halfway. Adjust the coarse adjustment potentiometer knob again to stop the audio sound of the speaker, and then fine adjust the potentiometer again to just stop the speaker sound. At this point, the sensitivity of the metal detector will increase. When using a metal detector to detect metal, as long as the detection disc approaches any metal, the speaker will emit a sound, and the sound will automatically stop when it moves away to a certain position.

MD-3000IIType intelligent recognition detectorJintu Electronics Company adopts advanced signal processing technology and high-performance signal processors to intelligently identify and accurately detect metal detectors that distinguish between magnetic (ferrous metals) and non-magnetic (non-ferrous metals). The MD-3000II intelligent recognition detector adopts a special waterproof design for the detection working surface, made of ABS material cast in one go, with fine craftsmanship and strong resistance. It can be freely dropped from a height of 2 meters without damage. If you need to know more, you can visit Jintu Electronics Company.