metal detecor MDU-2D underground metal detecor Feature and specification MDU-2D Max detection depth 2.0-4.0m Detection mode Ground Balance/identify mode Detection frequency 550khz±2khz Headphone frequency 450khz±2khz LED low-power indicator Yes LED charging indicator Yes Power 1.0w Operating temperature 0?-40? Feature and specification general characteristics Power supplying style 13V battery Color black Net weight 2.60kg Feature and specification optical accessories /packaging Special charger/battery Yes Special handbag(optional) Yes Packing style white box Normal carton capacity 1 Normal carton size 640L*350W*130H Gross weight 3.35kg Applications Custom inspection ;safety inspection; detection or searching of the public Security department of Interpol; detecting the iron of raw materials, fuel and food ;detecting underground pipes and lines; exploring iron, prospecting and archeology; scrap metal recycling etc