SHANGHAI CHENZHU INSTRUMENT CO., LTD was established in 2002, which originated from Shanghai automation instrument institute, 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. Actually, we have 4 certifications which were the first one in instrumentation industry domestic China, such as IECEx Certificate, Europe ATEX Certificate by DNV, SIL from TUV Rheinland, and Japan TIIS Ex-proof Certificate. CHENZHU's factory has 2 SMT production line, over 4.5 million pcs products were sold from 2002 till end of 2017.

Picture	Certification Name	Certified By	Business Scope	Available Date --- Expired Date	Verified
	ISO9001	CQC	Design, Manufacture of Isolated barriers, Isolators, Temperature Transmitters Surge Protective Devices, Electrical Monitoring Relays and Electrical Measuring Transducers Instruments.	2017-09-19 ~ 2020-11-05	Verified
	ISO14001	CQC	Design, Manufacture of Isolated barriers, Isolators, Temperature Transmitters Surge Protective Devices, Electrical Monitoring Relays and Electrical Measuring Transducers Instruments and Related Management Activities	2017-09-14 ~ 2020-09-02	Verified
	OHSAS18001	CQC	Design, manuafcture of isolated barriers, isolators, temperature transmitters, surge protective devices, electrical monitoring relays and electrical measuring transducers instruments and related management activities	2017-09-14 ~ 2021-02-09
	TEX-DNV QAN Production Quality Assurance Notification	DNV	Isolated sfety Barrier	2018-06-25 ~ 2021-06-26

Business Type	Manufacturer, Trading Company	Country / Region	Shanghai, China
Main Products	Isolated Barrier, Surgeprotection Device, Temperature Transmitter, Isolator, Safety Relay	Total Employees	101 - 200 People