Oxygen electrode type 300 Waterproof handheld meter for the simultaneous determination of pH, temperature and dissolved oxygen Portable multiparameter handheld instrument for the simultaneous determination of pH, conductivity/TDS/salinity and temperature. The combination of user-friendly operator guidance and graphic LCD display makes the meter the ideal companion for daily on-site analysis of water. Modern technogoly Due to galvanic isolation the temperature and two other parameters can be determined and displayed simultaneously. Intuitive Handling The combination of user-friendly operation and graphic LCD display in 7 different languages makes the portable measuring instrument the ideal companion for daily use in water analysis. Data management Measurement data including time stamp and location ID can be recorded with the data logger function. Via the micro-USB interface, the data can be easily transferred to a computer and processed without the need of additional software. Protective armouring The protective armouring with two electrode holders guarantees safe working even in extreme environmental conditions at all times. The stand attached to the back of the housing can be used conveniently as a hanger or belt clip. Additional features The range of functions is completed by the status display for the rechargeable NiMH batteries, the self-diagnosis of the sensors and much more.