Is Sonihull ECO waterproof?
The systems are usually fitted on the dry-side of the surface being protected, but they are manufactured to withstand the harsh marine environment.
The control box is IP53 rated and the transducers are IP68 rated. If required, the transducers can even be fitted underwater.
In fact, Sonihull ECO has fitted systems that are used on the outside of an underwater hotel, keeping the windows clean.