Portable Sonar LCD Fishfinder Fish Finder Alarm

This really cool fishing gadget has revelutionized fishing entirely for millions of fisherman world wide. Did you ever spend hours at a river bed, or a lake side just waiting to catch a fish and nothing happens, then you go home empty handed? Well, with the Portable Fishfinder, you won't have to spend countless hours, just waiting.This Fish Finder is designed for amateur and professional fishermen alike, to help you find out the location of fish including the depth of water. This unit can be used in an ocean, river or lake and is fantastic for detecting schools of fish in any particular area by use of Solar technology.

--- How does the sonar sensor work?

Sonar technology is based on sound waves. The system uses sonar to locate and define structure, composition, as well depth directly below the transducer of up to 45 degrees coverage. The transducer sends a sound wave signal and determines the distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off an object. It then uses the reflected signal to interpret the location, size, and composition of an object. This portable fishfinder is brought to you buy Intermart.