Raymarine P79, 600w In-Hull f/ST60

The Raymarine P79 600W in-hull transducer is a professional-grade depth and fish-finding sounder built for serious boaters and offshore anglers who demand accuracy in variable hull conditions. Unlike traditional puck-style transducers, the P79 features a liquid-filled base that bonds permanently to your hull, with a separate twist-lock transducer element that optimizes acoustic transmission through the hull material. This two-piece design delivers superior sound wave efficiency, resulting in clearer depth readings and better target definition in deeper water.

The P79's standout feature is its adjustable deadrise compensation, which accommodates hull angles up to 22 degrees. This adjustability ensures the sounder's beam remains vertically oriented regardless of your boat's keel configuration, eliminating the skewed readings and false bottoms that plague fixed transducers on deep-V or modified-V hulls. The 600-watt output delivers strong return signals even at extreme depths and through challenging bottom compositions—mud, sand, or hard bottom—making it equally at home over the continental shelf or in shallow estuary work. Weight of 2 lbs keeps installation minimal, and the compact footprint (6 × 4 × 8 inches) works with most through-hull mounting schemes.

This transducer suits weekend fishermen running basic depth sounder displays as well as offshore captains integrating the P79 into full navigation systems via NMEA 0183 or NMEA 2000 networks. The liquid-filled construction excels in salt-water environments where traditional air-backed ceramics degrade faster. Installation requires permanent hull bonding, so plan accordingly; this is not a portable transducer. If you're upgrading from an aging puck transducer or installing a new sounder system on a V-hulled vessel, the P79's deadrise adjustment and power output deliver the reliable, penetrating signal that separates good electronics from gear you can trust.