Xi'an Dacheng Instrument Co., Ltd. (abbreviated as Dacheng Instrument) is a high-tech enterprise specializing in the research, development, production, and sales of automation instruments and other equipment. Its products have been widely used in industries such as chemical, thermal power, petrochemical, pharmaceutical, metallurgy, machinery, electric furnaces, heat treatment, food, papermaking, and scientific research experiments.

Dacheng Instrument's main products include: conductivity meters, pH meters, dissolved oxygen meters, acid-base concentration meters, sodium ion concentration meters, turbidity meters, ultrapure water systems, spectrophotometers, level meters, pipettes, temperature controllers, and other series of products (distributing instruments from France's Polymetron, USA's HACH, USA's Honeywell, USA's Thermo Orion, Switzerland's SWAN, and other instrument brands).