Lowrance® Fishfinder & Chartplotter combos give you two vital fishing instruments with Marine GPS & Sonar capabilities in one easy to use device. See here. Fishfinders / Chartplotters. The world's best fishfinding sonar with powerful navigation performance you can count on. View the Fishfinder / Chartplotter device range. Lowrance® features a wide array of easy-to-use fishfinder/chartplotter combo packages, delivering powerful sonar and proven navigational performance for both freshwater and saltwater anglers. Find out more About the Lowrance FishHunter. The portable, castable fishfinder. See underwater using your smartphone and Wi-Fi connectivity. Switch between traditional sonar and Smart Fish View for easy and simple readings of the underwater surroundings, depth, and fish location and size. FishHunter Pro. FishHunter Pro is the world’s fastest and only tri-frequency, wireless portable fishfinder. Simply toss FishHunter Pro into the water and watch everything come into focus.