Parameter:
1. The sensitivity distance of detecting one-yuan coin is ≥5cm
2. Detection method: vibration, sound alarm
3. 4 alarm modes can be adjusted, press and hold the key for 3~4 seconds to enter the adjustment mode (sound + vibration low sensitivity; sound + vibration high sensitivity; vibration low sensitivity; vibration high sensitivity)
4. Power supply: 9V battery (need to buy by yourself)
5. Working environment: temperature minus 20-60 degrees Celsius
6. Dimensions: 215.5x41.5x43.52 mm
7. Weight: about 220 grams
8. Scope of application: security inspection, metal detection, treasure hunting, etc.

Features:
1. Beautiful and practical, light and portable, with special hanging accessories, easy to use
2. Waterproof grade IP68, full waterproof for 10 meters underwater
3. High stability, high sensitivity, 360-degree detection
4. The front detection head is equipped with a high-brightness LED light, which can be used as a lighting tool
5. Simple operation and convenient use