Shanghai Sighto Instrument Co., Ltd. is one of the high-end pressure measuring instrument manufacturers in China. It is currently the only Chinese manufacturer capable of mass producing ultra-high purity pressure measuring instruments. Shanghai Saitu Instrument Co., Ltd. was founded in Qingpu District, Shanghai in 1992 and has accumulated more then 30 years of experience in research, development, and production of pressure measuring instruments. Our products serve multiple industries such as semiconducter, nuclear power, petroleum and petrochemical, medical equipment, construction machinery, photovoltaic, hydraulic systems, water treatment etc. Seven years ago, we entered the nuclear power industry and provided stable supply of various pressure measuring instruments for nuclear power plants. The product has passed national seismic resistance testing, radiation testing, and reliability testing. Five years ago, we entered the photovoltaic and semiconducter field. Our production conform to ISO, SEMI and ASTM standards. Our company is based on the production technology research and development of high-end pressure and temperature measuring instruments. Our company has been launching the YTJ ultra-high cleanliness series pressure measuring instruments since 2019. To provide timely supply services for special gas distribution systems and detection applications of ultra clean gases in the semiconductor and photovoltaic industry. The ultra-high purity pressure gauge series products have been supplied in bulk to multiple chip companies and related equipment manufacturers in Beijing, Shanghai, Jiangsu, Wuhan, and other regions. At present, bulk products have been exported to many parts of the world.