Side Imaging On Fish Finders
Higher quality machines can use downward-looking sonar, have GPS mapping installed and show the images in bright color. Images can be saved and uploaded to a pc. Using an MMC/SD card will give you updates from the manufacturer's website and download them into your own system.
Do not use chemical cleaners on the lens of the finder; this can later cause cracking. Use a clean cloth dampened with fresh clean water to wipe away any saltwater dots. If the fishing boat remains in the water for a long period, clean the transducer with liquid detergent to avoid algae or marine growth. Do not leave the fish finder in the trunk of a car or a closed car; high temperatures may damage the electronic components of the advanced system.
Fish Finder Reviews