1) Display: 2.2inch
2) Sonar frequency: 125KHz
3) Sonar coverage: 90 degrees
4) Depth capacity: 0.7M-45M(2Feet-147Feet)
5) Power: 4*AAA battery
6) Wireless Operating Range: 120M/400Feet
7) W-Sensor Battery: One replaceable CR2032 battery
8) Operational Temperature: 14°F to 122°F(-10°C to 50°C)