Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for COD Monitor, Potassium ion Electrode, Digital Hardness Sensor RS485, Ph Tester,High Temperature ORP Electrode. All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands. The product will supply to all over the world, such as Europe, America, Australia,Dubai, Switzerland,Accra, Saudi Arabia.We've got more than 10 years experience of production and export business. We always develop and design kinds of novel items to meet the market demand and help the guests continuously by updating our goods. We've been specialized manufacturer and exporter in China. Wherever you are, make sure you join us, and together we will shape a bright future in your business field!