1Detect and display fish position, water temperature and depth, and bottom profile. 2Even at night or in cloudy weather fishing, LED backlight can be clearly read. 3Level 5 sensitivity can be selected to make the detection more accurate. 4Use simulation mode to help beginners learn and use fish detector. 5Circular sensor, 25 feet cable, gives a larger detecting area.This fish locator is capable of detecting the position of fish, the depth of the water, the contour of the bottom, the water temperature, and displaying the clear fish icon. Sonar frequency can distinguish fishes from other foreign objects like stone clearly and precisely. Features:Detect and display fish position, water temperature and depth, and bottom profile.Even at night or in cloudy weather fishing, LED backlight can be clearly read.Level 5 sensitivity can be selected to make the detection more accurate.Use simulation mode to help beginners learn and use fish detector.Circular sensor, 25 feet cable, gives a larger detecting area.High sonar frequency enables this sonar transducer to distinguish fishes from other foreign objects like stone accurately.45 detecting angle prevents the fishing sonar from missing important detail. Let you control whole situation.This fish detector can detect the fish condition clearly and precisely in the depth of 2 to 328ft underwater.Comes with a neck strap, easy to hang on the neck, convenient for you to use.Small portable devices can be easily pocketed. Specification: Display type: TN/ANTI-UV LCD Display Size: Approx. 4.3 * 4cm / 1.7 * 1.6in Backlighting: White LED Power supply: 4 * AAA Alkaline Batteries (Not Included) Measure unit: 0.6-100m / 2-328ft Sensor Beam Angle: 45 degrees Depth Range Maximum: 100M / 328ft Depth Range Min: 0.6M / 2ft Working Temperature: -10-45 Main Body Size: Approx. 12 * 7 * 2.5cm / 4.7 * 2.8 * 1.0in Weight: Approx. 565g / 19.9oz Package List: 1 * Fish Finder 1 * Round Transducer with 25ft Cable 1 * Transducer Adapter 1 * Stainless Bolt 1 * Stainless Wing Nut 1 * Neck Strap 1 * English User Manual