The material is ABS engineering plastics.
Adjustable rod: adjust the length of the metal detector, telescopic length: 30.7-42.1 inches.
Waterproof detection disk: metal detectors can be used in shallow water, detection disk diameter: 6.5 inches.
Power supply system: 9V*2 4AA batteries.
The detection mode is full metal mode and recognition mode. It can detect coins, metal fragments, jewelry, gold, silver and other metal materials.
Principle: Electric current magnetic field, the maximum detection depth is 5cm. Sensitivity (cm) (for coin 0.25): 18.