HUMMINBIRD 4081201 597CI HD DI COMBO FISHFINDER
HUMMINBIRD 4081201 597CI HD DI COMBO FISHFINDER Description
Sonar technology is based on sound waves. The 500 SeriesTM Fishfinder uses sonar to locate and define structure, bottom contour and composition, as well as depth directly below the transducer. Your 500 SeriesTM Fishfinder sends a sound wave signal and determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off of an object; it then uses the reflected signal to interpret location, size, and composition of an object.

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