This wired fish finder with 3.5 inch large color screen for convenient viewing the information detected by the transducer which has a capability of detecting water depth up to 100 meters, great for ocean, lake, river, boating fishing. Features include 3.5 inch MVA TFT LCD color screen, adjustable display, water depth, water temperature, fish location, fish size, bottom contour, and dual sonar frequency. The device has a depth capability of up to 100 meters, and the sonar coverage is 20 degrees in 200KHz and 60 degrees in 83KHz. It works on 10.5-13V DC battery and has a built-in memory that stores sonar settings when turned off.