... 2.Manual Eliminate Mineralization 3.LED back light option Advanced Treasure Metal Detector PiLi No.21.IntroductionThis high performance unit harnesses ... , Metal object detection on mail, baggage, hunting buried pipe, cable, Relic& Mineral hunting, Cache treasure & mineral hunting.3. Mineralization reactionAll soil and ... ±0.2VUpdate Date:2011-7-29 19:07:51 Advanced Treasure Metal Detector PiLi No.2