Bought someone one for their birthday. Tested it on some small gold flakes along with a TRX Pinpointer and a Garrett Carrot. Tested a lot of pinpointers on gold chains. TRX was always the best. Appears the Nokta works just as well on the micro gold. Carrot can't pick up my test gold. And to top it off you can disc out iron. Important thought on that was at one time I was going to buy 6 TRX pinpointers back in the day for gold chain dry sand hunting built into a PVC rake. Now you got a pinpointer to block out the iron! Need to get another one to see how close they can run by each other before buying 6 of them.