7"lcd 200ft/60m Fish Finder Underwater Fishing Video 600tvl Sony CCD Camera Show children what goes on at the bottom of the sea, lake, fishpond or aquarium. Search & Rescue, Farming & Marine Departments Look down wells and tanks or search dams, rivers and flooded mine shafts. Search sink holes, look down pipe or large drain holes for missing pets or children. Marine departments can check for damage, inspect boats or search for wrecks. Farmers can use Underwatercam to inspect the bottom of wells, tanks and dams. Use Underwatercam to check drains and pipes for root/branches/leaf clogs and blockages