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I'm killing myself trying to determine the best rout to go with PI detector. I just moved to Tennessee and with red clay mineralized soil would the White's TDI SL be a good choice or the Garrett ATX? I am new to PI detecting and thinking the TDI would be a good beginner's but should I jump all in with the ATX? I've heard the TDI is under powered but the ATX has a steep learning curve. 

Your input is welcome!!!! 


If you are even considering an ATX, then a GPX should also be on your list.  The nuanced audio on a GPX is better for target identification and pinpointing than the ATX and the GPX has better iron rejection features.

  • Like 3

I'm no PI guy, But Chase and Paris are correct on all accounts. If I were to pick one I would go with the GPX 4500 for a multi-purpose PI

I agree, TDI or GPX. Skip the ATX. When the ATX came out a GPX was a LOT more expensive, but price decreases since then no longer make the ATX very attractive compared to the GPX given its various limitations. And a GPX is not any harder to learn than a TDI. You don’t use 70% of the settings, just the pre-sets with a few minor adjustmments.

  • Like 2

I've often wondered about the GPX too.

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