Transd. Adjustable Internal Depth - Raymarine

The P79 adjustable indoor depth transducer is ideal for boats with fiberglass hulls looking for quick and easy installation, high-speed performance, or for those who want to minimize drag. The transducer installs inside the boat's hull, transmitting and receiving echoes through the full fiberglass bottom without any hull protrusion. P79 has an innovative flange that installs inside the boat's hull using fast-curing marine epoxy resin. No cutting or drilling is required. Using integrated markings, the flange is aligned to match the hull angle of the boat's hull. Once installed and made watertight, the flange is treated with non-toxic propylene glycol-based antifreeze and the active transducer cover is attached. Finally, the transducer cover is inserted and locked in place to achieve a straight beam and maximum echo return. Note: Being an indoor transducer, there is no water temperature sensor on the P79 transducer. The design of the P79 is suitable for a wide range of hull angles from 2° to 22°. This transducer is intended for use on boats with fiberglass hulls up to 5/8" thick. The P79 can also be used on aluminum hulls less than 3.8 mm (0.125") thick.