Adwa is a Hungarian company which produces water testing and laboratory analysis equipment. It was founded in 1999 and has a manufacturing facility in Romania. Its target groups are enterprises operating in research and industry. The product portfolio comprises waterproof pH/EC-measuring devices, portable pH/EC meters, various instruments for measuring temperatures, for determining the redox potential of certain substances, devices for measuring the electrical conductivity, ion-sensitive electrodes for measuring certain ion activities in solutions, measurement instruments for determining the content of dissolved oxygen in liquids as well as multi-parameter instruments combining the functionalities of several individual products in one device. Further products include recording devices, monitors and accessories such as electrodes and pH-regulating liquids.