Sustee is an easy-to-use hygrometer for pot plants which is stuck directly into the pot. An easily readable display indicates the right time to water the plant through a change in colour. The hygrometer’s organic design language is inspired by the soft contours of a plant. The water reservoir integrated in the hygrometer has a diameter of approximately 7 mm, with holes for water absorption and evaporation. The device is made of polycarbonate in an injection moulding process, guaranteeing sufficient stability.