F22 vs TDI Pro
| Fisher F22 | White's TDI Pro | |
|---|---|---|
| Technology | VLF | PI |
| Frequency | 7.69 kHz | N/A |
| Frequency Type | — | — |
| Frequency Tech | Single Frequency | Pulse Scan |
| Weight | 1.0 kg | 2.5 kg |
| Price | — | — |
| Best For | Coins, Jewelry, Park | Gold Prospecting, Deep Relics |
| Waterproof | Yes | Yes |
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