In this article, we will explore what RoHS certification means, why it matters, and how it elevates ERUN’s position as a leader in the water quality monitoring industry.

When the singing of the National Day meets the reunion of the Mid-Autumn Festival, the golden autumn of 2025 is particularly moving.

​On June 15, 2025, the 4th China-Africa Economic and Trade Expo successfully concluded at the Changsha International Convention and Exhibition Center in Hunan. ERUN deeply participated in this grand event.

Erun Environmental Protection Group's water quality testing equipment won the CE certification of the European Union, and its technical strength has been recognized by international authority again.

Xi'an Erun Environmental Protection Technology Group Co., Ltd. has ushered in another major breakthrough in the field of gas analysis, and the self-developed ERUN-QZ gas analyser (supporting 220VAC/24VDC) has been formally awarded the explosion-proof certificate issued by the National Quality Inspection and Testing Centre for Explosion-proof Electrical Products.

Recently, Erun celebrated its glorious 10th anniversary.

At the enthusiastic invitation of a professor from the Department of Metal Materials, School of Materials Science and Engineering, Xi‘an Shiyou University, the two sides gathered together to conduct in-depth discussions on scientific research projects such as the monitoring and control of trace dissolved oxygen (DO) in formation water produced from an oil field under a high temperature and high pressure environment in the Tarim region of Xinjiang.

Mr. Liang, technical director of the quality center of a mining company in the Democratic Republic of the Congo, visited Xi‘an Erun Environmental Protection Technology Group Co., Ltd. The two sides had in-depth technical exchanges on the ERUN-ST-MU97 series boiler water quality analyzers and circulating cooling water analyzers they had previously cooperated on.