PRODUCT SPECIFICATION:    
1) Depth Range Max/Min: 240Feet(75meters)/2Feet(0.7meters)    
2) Transducer: Small round transducer with 7.5m cable    
3) Display: Big Adjustable High-contrast Dot matrix FSTN LCD 128Vx64H    
4) Display size: 41Wx48H    
5) Back lighting: On/off White LED    
6) Sonar Coverage: 45-degree beam angle, 200KHz Sonar Frequency    
7) Temperature unit: Celsius/Fahrenheit    
8) Power Requirement: 4-AAA alkaline Batteries    
9) Removable float    
10) Battery strength indicator    
11) Levels sensitivity setting    
12) Clear fish icon, fish alarm    
13) User selectable meter ｏｒ feet readings    
14) Water Temperature Indicator    
15) Able to shoot through boat hull and clear ice    
16) Waterproof design: Level-4 (spray-water-proof)    
17) Bottom contour: Show true changing of water bottom contour    
18) Memory: Builtin memory stores sonar setting when the unit is turned off    
19) Operational Temperature: -4F to 158F(-20C-70C)