The Airmar Technologies P319-DO-BL is a low-profile, plastic thru-hull marine transducer designed for depth-only sensing. It features a single, dual-frequency ceramic element operating at 50/200 kHz with 600W RMS power. The 50 kHz frequency provides a 45° beamwidth for depth readings up to 366 m (1200'), while the 200 kHz frequency offers a 12° beamwidth for depths up to 213 m (700'). Its nearly-flush, urethane housing minimizes drag, extending only 5 mm (3/") outside the hull, and is ABYC H-27 compliant. This transducer is suitable for fiberglass or metal hulls up to 8 m (26') in length, accommodating a hull deadrise angle of 0° to 7° with best performance through 7° and capable up to 12°. It requires a 51 m") hull hole and includes a fixed insert and a right-angle cable exit for installation. It is equipped with a Navico BL 7-pin connector and a 10m (33') cable.