B744V Thru Hull Triducer 50/200kHz High Speed Fairing Block with 6-Pin Connector: Bronze thru-hull mount transducer with fairing block. Provides depth, temperature, and speed data. Operating frequency of 200 and 50 kHz. Beamwidth of 12 degrees at 200 kHz, 45 degrees at 50 kHz. Transducer kit comes with installation instructions - follow them carefully to ensure proper operation.