Waterproof design: Level-4 (spray-water-proof)
Sonar Frequency: Cable: 200Khz
Power requirement: 4* AAA batteries
Power Source: No. 7 Battery
Power Input: AAA
Display: 2inch TN/ANTI-UV LCD
Detecting Range: 0.6-183 Meter
Back lighting: On/off White LED
Show water depth, fish location, and bottom grass & rock
User selectable sensitivity,depth units, and fish alarm setting
Operational Temperature: 14degF to 122degF(-10degC to 50degC)