CEPREI Saibao of China entered the precision metrology instrument industry in 2001 and has long focused on the R&D and manufacturing of high-end precision metrology instruments. Thanks to its persistent commitment to the R&D of high-end metrology equipment, years of in-depth research and experience accumulated through multiple product iterations, the CEPREI Saibao instrument R&D team has achieved a series of technological breakthroughs in high-stability closed-loop feedback current, high-stability AC/DC voltage division, wideband linear amplification, digital signal synthesis, active simulated resistance, high-precision phase synchronization and other core technologies, launching the SB7500 series multi-function standard source. The SB7500 series multi-function standard source marks an important milestone in the development history of CEPREI Saibao.

After years of independent innovation and iteration based on field application feedback, the SB7500 multi-function standard source features mature hardware circuits, embedded software and overall mechanical structure. Its critical indicators including metrological performance, electromagnetic compatibility, safety, environmental adaptability and reliability have been fully verified. Its technical specifications take the leading position domestically, capable of fully replacing equivalent products from well-known imported brands, delivering more powerful functions, more stable output and a more user-friendly operation experience. This standard source is lightweight and easy to move, with high detection sensitivity, excellent reliability and consistent performance. Supported by timely maintenance services and fast spare parts supply, it can serve as a verification standard for laboratories as well as portable equipment for on-site inspection and patrol testing.