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About DeltaOHM HD98569 - pH,OPR, Conductivity,TDS, Dissolved Oxygen
The instrument can measure three electrochemical quantities at the same time: pH or ORP, conductivity, TDS or salinity, dissolved oxygen and temperature. Three optoisolated inputs.
Input 1: pH, ORP or temperature.
Input 2: dissolved oxygen or temperature.
Input 3: conductivity, total dissolved solids, salinity or temperature.
It can measure, store or download the readings through the multistandard RS232C/USB2.0 serial port.