This walk through metal detector is comprised of 6 interposed mesh detection sections that adopts the most advanced digital impulse technology and simultaneous transmission and receiving so as to detect concealed metal. Suitable for aw offices, justice courts, prisons, gymnasiums, casinos, airports, customs, exhibitions, museums and other public places. Specifications: 1) Power supply: 90V-250V 50/60Hz 2) Power consumption: 35VA 3) Working condition: -20 ~45°C 4) Overall dimensions (H x W x D): 2,220 x 820 x 522mm 5) Entrance dimensions (H x W x D): 2,000 x 700 x 522mm 6) Weight: 65kg 7) Signal frequency according to clients specifications Tel: 86-21-68317792-85