Specifications:

Display
Display Size: 3.0" FSTN LCD
Display Resolution: 128 x 64 Pixels
Display Contrast: 0~100% Adjustable Range
Backlight: Auto / On
Sonar
Depth Capability: 100m
Sonar Frequency: 190KHZ
Sonar Beam Angle: 45degree
Sonar Alarms: Fish / Shallow
Technical and casing
Built-in memory stores sonar settings when the unit is turned off.
Units: Meter / feet, Celsius / Fahrenheit
Operational Temperature: From -10C to 50C (14 Fto122 F)
Sensor Cable Length: 10 M (35 Feet)
Unit Dimensions: 138mm x 69mm x 32mm.
IPX7 Levels Casing Design
Power
Power Supply: 4 x AAA Alkaline Batteries
Battery Life: 20 Hours Continuous Use
Handheld power off automatically in 10min without any using.

Features
1) Switchable Fish Identification mode
2) Sensitivity: 0~100% Adjustable Range
3) Chart Speed: 0~100% Adjustable Range
4) Multi Levels Depth Range
5) "Freeze" Screen At Any Time
6) Fresh / Salt Water Environment
7) True Changing Water Bottom Graph.
8) Big/small fish identification