Welcome to SINOTESTER.. Established in 2008, 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 according to buyers' special requirements.Our uncompromising emphasis on ethical business practices, creativity and continual improvement has earned it a reputation as "Quality Best, Reputation First". A comprehensive quality control policy has been implemented. From raw material purchase to commodities delivery, each process is strictly under supervision. We will make every endeavor to supply high quality products and best services.Up to now, we have exported our products to more than 56 countries over the world."One step ahead" is corporation's aim and motive to develop strong and better. We warmly welcome the friends all over the world contact us and establish friendship and business relationship. SINOTESTER will sincerely cooperate with you and joint hands to create a splendid future!