This project is public bidding of the government, as a project leader for the first time to participate in such a large government bidding or has the certain difficulty, need to start from the prepared data, do the tender, including instrument selection, I chose the company pH6 + acidity meter, portable water quality analyzer its advantage is that English friendly interface, simple operation; It has gained the trust of the environmental protection government, providing a basis and guarantee for local environmental protection bureaus to better monitor water quality, making a significant contribution to the safety of drinking water in Anhui Province, receiving unanimous praise from the industry, and enhancing the company's reputation.