Hand-held Security Metal Detector, Detection Distance: 60mm 1. Highlight: Using imported chip, the performance is much better than the general chip 2. Features: Light and beautiful structure, high sensitivity, with a small back bag easy to carry 3. Applications: Suitable for applications requiring relatively high places such as: gold and silver jewelry, jewelry factory security and the need for a quiet school entrance examination venue mute checks Specifications: 1. Sensitivity: A25-cent coin (60mm) 2. Iron pipe-tube in 20 to 120mm 3. Operating frequency: 13KHz 4. Operating current: Less than 6mA 5. Power supply: 6F22 9V battery (not included) 6. Low battery indicated 7. Alert: Audio & LED light 8. Tuning: Automatic 9. 360 detection area with tip pinpointing 10. Temperature environment: -10 ~50 degree C 11. Detection sensitivity: Detection of one yuan coin, the detection distance 6cm and above 12. Current work: Sound and light is less than 20mA, the vibration is less than 70mA 13. Dimension: 483 x 83 x 32mm 14. Weight: 450g Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store