AquaBioSens is developing innovative handheld devices to measure aquatic hazards and pollution, aligning with the EU Mission to “Restore our ocean and waters by 2030”. Advanced analytics will be coupled with state-of-the-art sensors such as acoustic biosensors, fluorimetry, and organ-on-chip technology. These low-cost, web-connected devices will undergo testing in coastal and freshwater sites in the UK, Ireland, and Greece. The goal is to validate and demonstrate these technologies, paving the way for commercialisation.