Hanna instruments HI-98130 Pocket EC/TDS and pH Tester, High Range Tester PH Professional HANNA HI 98130 Instrument Tahan Kontaminasi Specifications : pH Range 0.0 to 14.0 pH pH Resolution 0.01 pH pH Accuracy 0.05 pH Conductivity Range 0.00 to 20.00 mS/cm Conductivity Resolution 0.01 mS/cm Conductivity Accuracy 2% F.S. TDS Range 0.00 to 10.00 ppt (...