There is not a better detector than a Minelab Excalibur. What sold me on it? I had a Fisher Aquanaut and the salesman took his gold ring off and placed a 16 penny nail through it. He passed it under my Fisher and the detector discriminated the iron and the gold ring. The Excalibur ignores iron like it not even there. Salesman passed the ring/nail combo under the Minelab coil and it ignored the nail and rang out on the gold ring. It works just as well in SCUBA diving depths as it does on dry sand beaches. That Garrett PI is a good machine until you have a little rusted bobby pin in the sea weed and its ringing out like a 10 gram gold ring. Tesoro Tiger Shark is a good machine and the Lifetime Warranty is good. I bought my Excalibur in 1990 and its been to the factory about 4 times in 23 years and has found about $4000 in gold rings. If you find a gold ring and you want to sell it, for Gods sake, don't take it to a "We Buy Gold", you'll get gypped. My Gold goes to
www.aragold.com, they pay 98% spot and they will buy the stones too.