The Hanna Instruments 3 in 1 pre amplified multiparameter probe that measures pH, EC/TDS and temperature within a single polypropylene body. The pH portion of this probe is constructed with a cloth junction, maintenance free polymer gel electrolyte, and a low temperature glass sensing bulb. The EC/TDS portion of this probe utilizes two graphite sensors for an amperometric determination of conductivity and total dissolved solids. A built in temperature sensor ensures that both pH and EC/TDS readings are compensated for temperature variations in both standards and samples. Pre amplified pH electrode
Amperometric EC/TDS sensor
Built in temperature sensor