This waterproof concentric coil is tuned for MX Sport

Vibration Only

Construction: Solid metal

miner’s carpet and ribbed matting

Placer-gold sampling

Placer Gold Black Sand Prospecting Magnet Probe Rock Hound Tools This waterproof concentric coil isThe Black Sand Magnetic Probe is not only proficient in finding black sand but, you are also able to locate the more course black sand which is where your larger gold will be dropping out. It fits easily into any backpack. Is light weight and an absolute must have in your arsenal of prospecting tools. This probe can be stuck deeply into the ground or water to locate black sands which may indicate a good location to find gold deposits.