Raymarine ST300, Thru-hull Shorty [E26008] Brand_Blue Sea Systems this antenna helps bring them

this antenna helps bring them in loud and clear

The clean look of flush mounting

but don't have room for one

Adapter cable adapts DSM30/DSM300 transducers to A series Transducers

Raymarine ST300, Thru-hull Shorty [E26008] Brand_Blue Sea Systems this antenna helps bring themST300 Thru hull Shorty The S300 ST300 speed sensors are our lowest cost and shortest thru hull speed sensors. As part of our Shorty Series, they are designed for boats with low headroom. The plastic P371 low profile outer housing option is nearly flush and minimizes drag with only 5 mm (3 16") extending outside of the hull. The plastic P398 countersunk outer housing option mounts flush, eliminating turbulence for more accurate speed readings.