Ningbo Sinotester Biological Co., Ltd.

we are a professional company that manufactures and exports laboratory instruments and equipments. We have our own factory and Laboratory, with strong R&D center, sales team, customer service team and QC team, which grows very fast and obtains good reputation in the market. Our major products include: Refractometer, Test paper, PH meter, Electrode, TDS meter, Salinity meter, ORP meter, DO meter, Conductivity meter, Turbidity meter, Color comparison tube, Water test kit, Milk Test Meter, Electrode etc. Most of the products have CE certificate. All products can be customized.