Our new paper in Sensors is now published, presenting a low-cost (~50 €) DIY hydrophone toolkit designed to make underwater acoustic monitoring accessible to researchers, educators, and citizen scientists alike.
📄 Paper: https://www.mdpi.com/1424-8220/25/23/7306

Why this matters:
-Underwater noise is a growing pressure on marine ecosystems, yet monitoring often relies on expensive instrumentation.
-Our design offers reliable performance at a fraction of the cost, supporting broader participation in acoustic monitoring and long-term soundscape assessments.
-All components, assembly steps, and validation tests are openly documented to ensure easy adoption.

A highlight of this work has been its impact beyond the lab.
Over recent days, the hydrophones were introduced to local Scout groups, demonstrating how to build and operate it, and providing devices for their own soundscape explorations. Their engagement shows how accessible tools can foster environmental awareness and hands-on learning.

This paper reflects a collaborative effort to democratize marine acoustic monitoring and expand the community contributing to ocean stewardship.
Looking forward to seeing where this toolkit travels next — from research teams to classrooms and citizen-science initiatives. 🌊🔊

How does it work? Check the video here!