Transom Mount Transducer For Humminbird 710295-1 Helix 7/8 CHIRP MEGA DI GPS G3
It will provide the sharpest image the unit is capable of. Dual Spectrum CHIRP Frequencies --. Transom mount transducer (includes built-in Temperature) with 20 ft cable length. Full: 150-220 kHz, Narrow: 180-240 kHz.