Description Product 1. The operation is simple and convenient, and can find evidence faster. 2. Sound and vibration alarm at the same time time.. 3. Automatic adjustment without zeroing.. 4. Positioning instructions, 360 degree scanning in all directions.. 5. With LED flash, it is convenient Use in low light conditions or at night. Features and scope of use 1. The operation is simple and convenient, and can find evidence more quickly. / 2. Sound alarm and vibration at the same time. 3. Automatic adjustment without resetting. 4. Positioning instructions, 360 degree scanning in all directions. 5. With LED flash, it is convenient to use at dusk or at night. 6. Equipped with a professional leather case for easy transportation. 7. Waterproof design, more versatile. 8. The company has passed ISO9001: 2008 quality management system certification 9. The product has passed EU CE certification 10. The product complies with the quality and safety standards of electronic products Technical parameter 1. Detection sensitivity: detection of RMB yuan coins, detection of distance is 3 cm 2. Alarm mode: Sound and light vibration synchronous alarm 3. Power supply: 9 volt square battery (6F22ND battery) (not included) 4. Working temperature: - 37 to 70 5. Dimensions: 23*4*4cm 6. Net weight: 175g 7. Gross weight: 238g 8. The size of the color box: 24.5*6*6cm