This is the ultrasonic antifouling system I started developing in 2014 and that was documented in these articles:
Ultrasonic Antifouling System: Part 1, Development & Construction
Ultrasonic Antifouling System: Part 2, Fighting Algae Growth
Please note that it is not always available, because it is quite time-consuming to build and we don’t always have transducers in stock. We manufacture them in small batches and I listed it here because people were asking about purchasing it by e-mail. We have shipped them worldwide since 2018.
So far, this system has proven to be superior to many high-priced commercial offerings. Ultrasonic antifouling is still an active area of research and development here, with trials usually underway and incremental product improvements. This is third generation hardware, completely redesigned in 2021 to meet extended functional requirements.
Product Manual (Rev 2) (systems sold from 2021 with multi-colour indicator LED)
Product Manual (Rev 1) (systems sold from October 2019 with red LED and coaxial transducer cable)
Product Manual (Rev 0) (systems sold before October 2019 with red LED and twin-core transducer cable)