Shanghai San-Xin Instrumentation, Inc. is specialized in manufacturing pH meter, TDS Meter, conductivity meter, chlorine meter, water hardness analysis meter, Dissolved Oxygen measuring meter, industrial pH (ORP) measuring system for water solution analysis as well as various pH, ORP, conductivity, industrial pH (ORP) and ion selective electrodes. At present, our products have been exporting to many western countries such as the U.S.A., Japan, South Korea, Singapore, Argentina and any other European countries. Our plant is also developing new meters and electrodes all the time. Meanwhile, we could customize according to customer's special requirements.Since 1990 when San-Xin Instrumentation Inc. established, it has been growing and developing rapidly by persisting in Honesty and Creditfaith with exquisite technology, excellent quality, reasonable price and first-class service make us are more satisfactory by domestic and western customers. In the future, we shall still strive to develop new products, and explore potential market for rewarding all of our customers concern.Main Products: Series of Pen Measuring Meter (pH/Conductivity/TDS/ORP/EC) PHB Series Portable pH Meter PHS Series Bench Top pH Meter ExStik Series Waterproof Measuring Meter (pH/ORP/Chlorine/Conductivity and Dissolved Oxygen) Series of pH, ORP, Conductance and Ion Electrode �.This price based on the EXW.�.We offer 20 percent to 40 percent discounts according to different quantity and amounts.�.If you have any special request, pleaase let us know.