512 colors TFT V240*H160 sunlight readable with white LED frontlight</br>100-level sensitivity setting and multi levels depth range</br>Depth reading from 2.0 to 240ft in 1/10th precision</br>Bottom contour and water temperature indicator</br>Easy to operate; Simply turn the power on and cast the sonar sensor from the bank?? rock?? bridge?? or boat</br></br>Product Description</br></br><b>Description:</b> <br>This product is designed for amateur and professional fishermen to find out the location of fish with sonar sensor. Ideal for fishing and family vacations. <br>Can be used in ocean?? river or lake and fantastic for detecting schools of fish in any particular area. <br> Using amazing and innovative technology?? it is the ideal tool to bring the fish to you! <br> <br> <b>How Sonar Works:</b> <br>Sonar technology is ba" sound waves. The system uses sonar to locate fish and explore the river?? lake or ocean bottom structure?? as well depth of the water. <br> The transducer sends a sound wave signal and determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off an object; then it uses the reflected signal to interpret location?? size?? and composition of an object. <br> <br> <b>Feature</b> <br> Auto zoom bottom tracking and quick manual zoom. User selectable feet or meter reading. <br>Big/small fish identification and fish depth indicator. <br>Audible fish and depth alarm?? depth alarm 3-99ft. <br>200KHz/83KHz duel beam sonar frequency. <br>"Chart" at any time <br>Multi-language menu <br> <b> Color Screen Display<br></b> <br> <b>Specification:</b> <br>