At Whiskeyjack Ridge Bushcraft we decided to review a product that we haven't really seen in a lot of tackle boxes this season, and upon purchasing one of the several models available, were immediately impressed with the products performance.
The product is a CASTABLE fish sonar made by a Canadian company called DEEPER. We purchased the DEEPER START SMART FISH FINDER. and this is what we experienced.
We tested this product in running water on the Irondale River in Furnace Falls Ontario.