Zhejiang NADE Scientific Instrument Co., Ltd. as a professional Conductivity / Resistivity / TDS / Salinity Meter manufacturer and supplier in China, all the Conductivity / Resistivity / TDS / Salinity Meter have passed the international industry certification standards, and you can be completely assured of quality. If you do not find your own Intent Conductivity / Resistivity / TDS / Salinity Meter in our product list, you can also contact us, we can provide customized services.