Airmar B175C Medium Frequency CHIRP Transducer with 20d Tilted ElementModel: B175-C-20-M-MMMedium—CHIRPS from 85 kHz to 135 kHz, 24° to 16° beamwidth50 kHz of total bandwidth from one...
Airmar B175C High Frequency CHIRP Transducer with 12d Tilted Element and Garmin 12 pin M&M Chirp Cable - 1m Model: B175-C-12-H-12G High—CHIRPS from 130 kHz to 210 kHz, 15° to 9° beamwidth 80...