1) Display: 2inch LCD
2) Back lighting: On/Off Blue LED
3) Depth Capability: 130feet (40m)
4) Wireless Sonar: 90 degrees beam angle in 125Khz
5) Wireless operational Range: 400feet (120m)
6) Power Requirement: 4 x AAA alkaline batteries
7) Wireless Sensor battery requirement: one replaceable CR2032 battery
8) Waterproof design: level-4 (spray-water-proof)
9) Show water depth, fish location, and bottom grass & rock
10) User selectable sensitivity, depth units, and fish alarm setting
11) Wireless Sensor could shut down when it is out of the water
12) Operational Temperature: -14'F to 122'F(-10~50'C)