Tag Archives: Check™ and USP pH/ORP

อุปกรณ์วัด pH (Research Grade Meter with Calibration Check™ and USP pH/ORP and EC/TDS/Resistiv

HI 4521 Research Grade Meter with Calibration Check™ and USP pH/ORP and EC/TDS/Resistivity/Salinity and Temperature HI 4521 is a research grade, benchtop instrument that features 7 measurement parameters: pH, ORP (Oxidation Reduction Potential), conductivity, resistivity, TDS, salinity and temperature. This meter incorporates dual channels with a separate temperature input and support the external reference electrodes required by half cell pH sensors. The user ... Read More »

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