Aguard is the first float device designed to help protect our waters. By measuring the electrical conductivity of water, it allows the estimation of salinity levels, which are one of the main indicators of water quality. Measurement results can be checked in the mobile app. In cases of high salinity, Aguard notifies the relevant facts, and experts from the Warsaw University of Life Sciences (SGGW) continuously monitor the situation. If high levels persist, SGGW will take appropriate actions.