9-in-1 Meter with Lab Performance. The 9-in-1 DO700 Kit measures DO concentration/saturation, pH, mV, Temperature, Conductivity, TDS, Salinity, and Resistivity. It features automatic salinitypensation and manual barometric pressurepensation for DO measurements. In addition, it has automatic one button calibration of 4, 7 and 10 pH with a choice of three-point …
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