I tried this out a few days ago and it worked great. The depth reading is accurate. I love the long cord and the fact of how portable it is. The equipment shows the depths any school of fish is located which is helpful in trying to fish them. I thought readings of the finding of fishes was accurate since I as well as other people landed quite a few on the depth it was showing.This equipment doesn't show however the different sizes of fish. So it cannot differentiate between a school of large fishes VS a school of tiny baitfishes. However otherwise from this I thought it was a very good piece of equipment.