The laboratory water quality detector is used to detect the quality of water quality, monitor and measure the types of pollutants in the water body, the concentration and change trend of various pollutants. The scope of monitoring is very wide, including surface and groundwater monitoring, monitoring of production and living processes, etc. Water quality testing can provide data and information for environmental management to ensure water quality. In order to improve the work efficiency and accuracy of water quality testing, an intelligent testing instrument specially designed for the laboratory greatly facilitates the work of water quality testing personnel, improves testing efficiency, and provides a strong guarantee for water quality safety. This intelligent laboratory water quality detector adopts a unique combination concept, and the designer has made design innovations in appearance design, structural design, and hand board production. The appearance design conforms to the international and domestic water quality monitoring standards, and integrates a variety of precision detection sensors. The design is exquisite, simple and atmospheric, and the colors are matched with white and blue. The texture is exquisite, and the whole gives people simple and modern beauty. The measurement process is displayed intuitively and the operation is simple. Modular design, easy to assemble, easy to maintain and maintain. At present, the main water quality monitoring methods are chemical, electrochemical, atomic absorption spectrophotometry, ion selective electrode method. This laboratory water quality detector is designed to detect water samples through the principle of electrode method, and the sensor electrode detects the conductivity, temperature, pH, ORP, dissolved oxygen and other parameters of the water sample. The lifting of the sensor bracket and the stirring of the water sample are automatically controlled by touch screen or infrared gesture. Magnetic stirring device is adopted, without contacting the solution, stirring is carried out through magnetic force to avoid cross-contamination of the solution. Magnetic stirring avoids cross-contamination of the solution and improves data accuracy. The design of the water quality detector has the characteristics of high accuracy, fast measurement, simple operation and stable performance. It can measure more than 10 indicators and store 20 sets of measurement data according to needs.