Airmar B45-DT-HB 600W Thru-Hull Transducer w/Fairing Block Humminbird #9 Connector [B45-DT-HB] Marine Navigation & Instruments | Accessories Coating of internal components prevents

Coating of internal components prevents damage from damp or condensation to ensure a longer lifespan

The connection is an SO239 which uses a standard PL259 connector

Box Dimensions: 8"H x 10"W x 14"L WT: 6

and the knob could not be tightened by hand

Airmar B45-DT-HB 600W Thru-Hull Transducer w/Fairing Block Humminbird #9 Connector [B45-DT-HB] Marine Navigation & Instruments | Accessories Coating of internal components preventsB45 DT HB 600W Thru Hull Transducer w Fairing Block & Humminbird #9 Connector The B45 is our smallest and most economical, dual frequency, bronze, stem transducer. Its streamlined shape and High Performance fairing block deflects aerated water from the transducer's face for strong return echoes and clear display images. Features: Bronze housing Depth and Temperature Recommended for planing hull powerboats and cruising sailboats up to 9 m (30) Good