TIANXUN MD-3003 Handheld Scanner

TIANXUN MD-3003 Handheld Scanner Specs:

Detection distance: 15cm-20cm
The sensitivity is decided by the size, shape and the component of metal
Technical Specifications:
Battery: 9V battery or rechargeable battery
Power: 270mW
Operating frequency: 22 KHz
Operating current: <50mA
Operating voltage range: 7~9V
Temperature range: -5℃~55℃
Net weight: 280g
Size: 39.5（L）X6.8(W)X3.2(H)