Unique IMD's works on the advanced Pulse Induction principle, renowned for its ability to detect the tramp metals from the conductive ores. These Metal Detector find more useful in the place where magnetite, hematite, pyrites, wet materials are conveyed. The advantage of this Metal Detector is it gives Zero malfunctioning to vibration compare to other metal detector. The welding / walky talky effect is also nullified within 2mts range. A suitable high Sensitivity is also achieved according to the aperture size in the Pulse Induction Waterproof Metal Detector.