Humminbird Helix 7/8 MEGA Down Imaging Transducer with Dual Spectrum Chirp

[ Dual Spectrum CHIRP Frequencies ] -- Full: 150-220 kHz, Narrow: 180-240 kHz, Wide: 140-200 kHz Dual Spectrum CHIRP Max Depth -- 1200ft (365m). Ideal to maintain depth and bottom at higher speeds. It will provide the sharpest image the unit is capable of.

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