Specifications:
Display Size: 2.8 inch
Depth Capacity: 0.7m-100m
Sonar Frequency/Beam Angle: 60 degree in 83KHZ, 20 degree in 200KHZ
Wireless Operating Range:100M
Battery Life: alkaline batteries 16h,
dry batteries 12h
Operating Temperature Range: -10ºC~50ºC