Our company was established in 1953. Now the whole company has over 1000 employees, and covers an area of over 4500 square meters. Rex is our brand of products. We enjoy a high reputation in manufacturing electrochemical analytical instruments including pH Meter, Ion Meter, Conductivity Meter, Dissolved Oxygen Meter, Multi-parameter water quality monitor, automatic titrator, COD (chemical oxygen demand)meter, water purification system, various sensors and etc. Our products can be used in a wide variety of fields such as drug testing, medical care, pharmaceuticals, disease control, food security, environmental protection, water quality analysis, petrochemical industry, metallurgy, scientific research and high education. We have a strong and self-inspiring Research and Development team. They are responsible for developing new products and designing specific products according to customers requirements. Our products occupy a majority of market share in China. They not only meet with domestic demand but also are exported to many countries in Europe, Asia, America and South Africa. We also provide OEM service. Now we continually expand categories of our products and always take quality and after-sales service as top priority.