Hand-held metal detector 3003B1

flat

TECHNICAL SPECIFICATIONS ■ Unit Dimension: 410L)* 85W)* 45(H) mm ■ Power voltage: standard 9V battery ■ Operating voltage: 7V-9V ■ Alarm Sound: ≥75dB(A) ■ Operating Current: <50mA ■ Alarm terms: sound (vibration) and light alarm ■ Waterproof: IP31 ■ Operation Frequency: 40KHz ■ Housing material: ABS- black 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.