We offer a wide range of these portable multi-parameter instruments to measure pH, Conductivity, TDS and Temperature – all at the same time. Typical areas of use are outdoor applications in the fields of agriculture, hydroponics, swimming pools and spas, environmental analysis as well as indoor applications such as boilers, cooling towers and the printing industry.  Advanced features include microprocessor based units in waterproof casings, which supply the user with the latest in technology - from automatic calibration and battery consumption monitoring to user selectable conversion factors.