These types of products require certification,Imported Hall sensorCurrent sensors recognized as intrinsic safety (IS) devices are low-power devices that comply with the design, installation, and maintenance standards established by the Instrumentation, Systems, and Automation (ISA) Association. Its standards include: CSA Mark - Products bearing the CSA mark have been tested by the Canadian Standards Association (CSA) and comply with applicable safety and/or performance standards. These standards are developed and managed by organizations such as the American National Standards Institute (ANSI), Underwriters Laboratories (UL), and CSA International. The CSA mark may appear alone or with an indicator. The standalone CSA logo is used for products primarily certified for the Canadian market, in compliance with applicable Canadian standards. The CSA mark with the "C" and "US" or "NRTL/C" markings is used for products certified in the US and Canadian markets, in compliance with applicable US and Canadian standards.

58彩票RoHS (Restriction of Hazardous Substances) is an EU directive that requires all electronic and electrical equipment manufacturers sold in Europe to certify that their products contain only the minimum levels of harmful substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers. RoHS came into effect on July 1, 2006. Underwriters Laboratories - Underwriters Laboratories (UL) is a non-profit organization that tests components, systems, and materials according to its published safety standards. Products that have obtained UL certification carry the UL mark.