This amazing product is especially designed for amateur and professional fishermen alike, to find out the location of fish, depth and bottom contour of water. The unit can be used in ocean, river or lake and is fantastic for detecting schools of fish in any particular area.

Features:
Dot matrix LCD display.
Depth readout from 2.0 to 120ft.
Fish and depth alarm.
Bottom contour and water temperature indicator.
Big / small fish and fish depth indicator.
Feet and meter selectable.
Battery rechargeable.

Specifications:
Display type: Dot matrix LCD
Display size: 5 * 4cm / 2.0 * 1.6in
Display dot number:128 * 96
Depth range: 2~120ft / 0.6~36m
Wireless operating range: 80~100m / 262~328ft
Sonar frequency: 125kHz
Sonar beam angle: 90 degrees
Radio frequency: 433.92mHz
Operational temperature: -10~70?
Power supply: Lithium battery 3.7V, Polymer battery 3.7V