Shanghai Sighto Instrument Co., Ltd.was founded in Shanghai in 1993 (formerly known as Shanghai Brighty Instrument Co., Ltd.),which is a manufacturer of all kinds of pressure gauges and bi-metal thermometers.Simultaneously, the company has the capability of providing high-quality and low-cost whole OEM pressure gauges, thermometers and components for customers.The company was certified to ISO9001 Quality Management System of CGW in 2008, and has the registered trademarks including SSI, SST, SSY and Sighto.