Product information:
Kit name: Metal detector manufacturing kit
Work current: about 23mA (in case of normal alarm)
Static work Current: 3.7mA (without alarm)
Power supply voltage: two button batteries
Working power supply: 3-5V
PCB size: 60 * 185mm
Kit uses: game entertainment, security inspection, metal products on search bags
Including mobile phones, controlled knives, etc.
Maximum detection range: 3-5cm, the larger the metal area, the farther the detection distance, the metal surface
The smaller the product is, the closer the detection distance is.