The Raymarine CPT-S 20° Thru-Hull (A80447) is a High CHIRP smart sonar transducer constructed from durable urethane, designed for low-profile thru-hull installation. Engineered with a fixed 20° internal element tilt, it compensates for steeper hull deadrise angles ranging from 15° to 25° to project the acoustic beam vertically downward without requiring an external fairing block. Its flush, low-profile design sits flat against fiberglass or metal hull surfaces to minimize drag and reduce turbulence at speed. Operating across High CHIRP frequencies (170 kHz to 230 kHz) with a 25° conical beam width, the CPT-S 20° delivers crisp target separation, accurate depth tracking, and clear bottom imagery down to 900 ft.