Originally Posted by
Tony Two-Cent
The AT Pro and the AT Gold are similar machines, the biggest difference being their frequency.
The AT Pro is 15 kHz and the AT Gold is 18 kHz.
The 18 kHz frequency of the AT Gold makes it more suitable for finding tiny gold nuggets. (Hence the name AT Gold.)
If you are planning on prospecting for gold nuggets then I would consider getting the AT Gold, if you are only planning on hunting for coins, jewelry and relics then I would go with the less expensive AT Pro.