Simrad 000-13770-001 XSonic Airmar TM275LH-W

Urethane, Transom-mounted, 42-65 kHz/150-250 kHz Dual Channel CHIRP transducer (Wide Angle): Dual Black 9 pin connectors: Cable length 10 m (33.0 ft). The TM275LH-W is a urethane, transom-mounted CHIRP transducer, ideal for sportfishing and commercial vessels 8 m (25 ft) and up. This dual-channel transducer combines Low CHIRP frequencies to accurately track the bottom in deep water, with High CHIRP at a constant 25° beam width for the best resolution and coverage in the upper water column and in shallower depths. The TM275C-LHW CHIRP transom-mount transducer has 8 internal, broadband ceramic elements. The low-frequency can be chirped from 42 to 65 kHz while the high-frequency chirps from 130 to 210 kHz. The beamwidth is a wide 25° across all frequencies. Also included is a high-precision water-temperature sensor for accurate sea-surface temperature readings.