Hand-held metal detector V160

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PARAMETERS ■ Unit Dimension: 380(Ly 120(W). 90(H) mm ■ Power voltage: standard 9V battery I. Operating voltage: 7V-9V ■ Alarm Sound: 1.75dB(A) ■ Operating Current <50mA ■ Alarm terms: sound (vibration) and light alarm ■ Waterproof: IP31 ■ Operation Frequency: 40KHz I. Weight: 200g HIGH SENSITIVITY A , Pin: 30-60mm B , 64-Pistol : 180-195mm C , 6 inch Knife: 160-180mm D , Steel ball with 20mm diameter: 120mm E , One Yuan coin: 75-100mm USE DOMAIN Security detecting: Prevent taking contraband, such as: knife, gun and so on. Factory Prevent the loss of valued objects Education area: Prevent taking cheat-tool, such as: telephone, electronic dictionary, and so on.