1) Depth Range Max/Min: 120Feet(40meters)/2Feet(0.7meters)     
2) Wireless sensor: 90-degree beam angle     
3) Display: Big Adjustable High-contrast Dot matrix FSTN LCD 128Vx64H     
4) Display size: 41Wx48H     
5) Back lighting: On/off White LED     
6) 125KHz sonar frequency     
7) Temperature unit: Celsius/Fahrenheit     
8) Wireless operational Range: 230Feets(70meters)     
9) Power Requirement: 4-AAA alkaline batteries     
10) Battery strength indicator     
11) Levels sensitivity setting     
12) Clear fish icon, fish alarm     
13) Bottom contour: Show true changing of water bottom contour     
14) User selectable meter or feet readings     
15) Water Temperature Indicator     
16) Waterproof design: Level-4 (spray-water-proof)     
17) Memory: Built –in memory stores sonar setting when the unit is turned off     
18) W-Sensor could shut down when it is out of the water     
19) W-Sensor battery requirement:One replaceable CR-2032 lithium battery     
20) Operational Temperature: -4F to 158F(-20C-70C)