1) Depth Range Max/Min: 138Feet(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: 50-70meter

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 life: Lasts for approximately 500hours of in-water use

20) Operational Temperature: -4F to 158F(-20C-70C)