SHANGHAI CHENZHU INSTRUMENT CO., LTD was established in 2002, which originated from Shanghai automation instrument institute, has grown as a leading brand providing high quality protective product for your important asset in both Process Automation and Factory Automation industry, specialized in isolated barriers, signal isolators, Surge Protective Devices and safety relays etc. integrating research and development, manufacturing and sales, providing OEM/ODM service and self-brand product. 2013, we launched the first One million pcs product and announced 5 years guarantee. https://www.chenzhuisolator.com/
