EMD-28 Hand-Held Metal Detector The hand-held metal detector EMD28 detects both ferrous and nonferrous metals. Sensitivity is adjustable. It can also locate metal objects in camouflaged hiding places such as persons, hand luggage, mail and parcel consignments, walls, wainscoting, hollow spaces and in the soil. Performance: Small coin, detection distance 7cm Iron pipe-tube in 20mm, detection distance 12cm Dagger, detection 11cm Battery type DC 9V IEC 6F22 Current Consumption Less than 3mA Operation Temp. -10 ~ + 50C Weight 230g (without battery) Dimension:395mm (operation),260mm (storage) DIA. Of Search Head 140mm