High Sensitive Metal DetectorThe metal detector allows you to scan large areas quickly, then use precise positioning tips to narrow and precisely locate the target before excavation. The bar probe design allows you to hand-held metal detector for detection. Easy OperationSingle button, when the metal object is detected, the LED light will light up. At the same time, there will be 'Bi-Bi' sound as an alarm. When the detector is close to the metal target, the intensity of the alarm will increase. This unique feature helps the user determine the exact location of the target. Light Weight to Carrying1/3 of the weight of traditional metal detectors. Comes with hooks, portable bag, instruction manual. Note: Battery free. Partial WaterproofThe needle pointer of the dustproof metal detector is partially waterproof. You can sink this part into the water to check for metal in the water. But it can't be used in water, switches and horns are not waterproof. Widely ApplicationThis metal detecting pinpointer can do various types of jobs like finding coin, gold, silver, relics, jewelry to help you easily find treasures or missing metal objects whether indoors, outdoors, in wall, sand, grass or soil, even in a extreme temperature range of -35oF (-37oC) to 158oFProducts from He Wei 's store