Description Description Product description 1. The operation is simple and convenient, and can find evidence faster.. 2. Sound alarm and vibration at the same time.. 3. Automatic adjustment without zeroing.. 4. Positioning instructions, 360 degree scanning in all directions.. 5. With LED flash, it is convenient to use in dim light or at night. Characteristics and field of use 1. The operation is simple and convenient, and can find evidence faster. 2. Alarm sound and vibration at the same time. 3. Automatic adjustment without zeroing. 4. Positioning instructions, 360 degree scanning in all directions. 5. With LED flash, it is convenient to use in dim light or at night. 6. Equipped with professional leather case for easy carrying. 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 safety and electronic product quality standards Technical Parameter 1. Detection sensitivity: RMB yuan coin detection, detection distance is 3cm 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. Color box size: 24.5*6*6cm