The company was founded in Singapore in 1985 and entered Shenzhen, China in 2003, establishing Shenzhen Yijie Instrument Co., Ltd.

The company mainly acts as an agent for imported brands, including DAVIS meteorological stations, R.M.Young meteorological instruments, VAISALA meteorological instruments, Kestrel/NK handheld meteorological instruments, TE Wire&Cable thermocouples/temperature measuring wires, CAL temperature controller series, GE Druck, STATUS, REOTEPM thermometers/pressure gauges/thermocouples, AOIP temperature/pressure/voltage resistance calibrators, Meriam pressure gauges/flow meters, ISUZU temperature and humidity instruments, LAE refrigeration temperature controllers, German ECOM explosion-proof mobile phones/computers/lighting equipment, GAS CLIP gas detectors, ACEZ sensing temperature/flow sensors.