Joan Allen Metal Detectors

Professional-level ground-balancing, pulse induction detection. Unlike any other metal detector on the market today, the TDI is capable of remarkable depth and extreme sensitivity in the worst grounds.

• Full-control Ground Balance - Quickly balance out the iron mineralization of hot rocks, black sand, and other tough grounds.
• Adjustable Pulse Delay - Settings from 10 ms (best for finding gold nuggets) to 25 ms (for relic, coin and beach hunting)
• Variable Audio Select - with Ground Balance ON
• 3-Way Target Conductivity Selector - allows variable audio to hear either only low conductive targets like most gold nuggets, or high-conductive targets like silver coins and large relics, or both. This unique ability aids in identifying trash, too.
• Threshold Control. - Accurately adjust the audio to hear the smaller, deeper signals.
• Frequency Control - adjusts for hunting near power lines, microwave or other environmental interference.
• Battery Life L.E.D. lights.
• Waterproof 12" spider search coil. - Other accessory coils available.
• Two powerful 14.4 Volt Lithium-Ion Rechargeable Battery Packs included.
• Two-year Parts and Labour Warranty.