On April 22, 2026, Germany's TÜV Rheinland globally announced the launch of the new industrial sensor electromagnetic compatibility testing standard TR-EMC-2026, replacing the current EN 61000-6-2/-4. This standard newly adds a radio frequency immunity dynamic scan test item for IoT gateway-integrated pressure/flow sensors, and has been listed by German companies such as Siemens and Bosch as a mandatory access requirement for new projects in the second half of 2026. It has a significant impact on industrial sensor manufacturing, contract manufacturing, and system integration enterprises exporting to the EU.

Event Overview

TÜV Rheinland officially launched the TR-EMC-2026 standard on April 22, 2026, clearly replacing EN 61000-6-2 (generic immunity standard) and EN 61000-6-4 (generic emission standard). For the first time, the new standard incorporates IoT gateway-embedded pressure/flow sensors into a unified EMC testing framework and introduces a radio frequency immunity dynamic scan testing method. At present, only 12 third-party laboratories nationwide have been authorized by TÜV Rheinland to carry out this test, and many sensor contract factories in Xi'an and the Yangtze River Delta region are facing queue times of up to 6–8 weeks.

Which Market Segments Will Be Affected

Processing and Manufacturing Enterprises

OEM/ODM contract factories mainly producing pressure and flow sensors are directly affected. Because TR-EMC-2026 adds a new dynamic scan test item, the existing EMC pre-test plans for production lines need to be adjusted, and the extended certification cycle will directly constrain the delivery pace of EU orders in Q3.

System Integration Enterprises

Enterprises providing embedded sensor modules for industrial IoT gateways need to re-verify complete machine-level EMC performance. Modules that originally passed EN 61000-6-2/-4 certification as separate components must, after integration into gateways, complete complete-machine immunity dynamic scanning in accordance with TR-EMC-2026, increasing both testing complexity and cost.

Direct Trading Enterprises

For foreign trade enterprises exporting industrial sensors or gateway devices with sensing functions to the German and EU markets, if products have not yet completed TR-EMC-2026 certification, they will be unable to meet the access requirements for new projects in the second half of 2026 from leading customers such as Siemens and Bosch, creating the risk of order delays or failure to pass technical agreements.

Supply Chain Service Enterprises

Third-party institutions providing services such as EMC testing agency support, certification coordination, and test scheduling management are facing concentrated demand release. Authorized laboratory resources are currently tight, and service response cycles are lengthening, creating a practical bottleneck for small and medium-sized suppliers that rely on fast clearance capabilities.

What Key Points Should Relevant Enterprises or Practitioners Pay Attention To, and How Should They Respond at Present

Confirm Whether Products Fall Within the Scope of TR-EMC-2026

The key is to verify whether exported products belong to the category of “pressure/flow sensors integrated into IoT gateways”—that is, sensor units not installed independently and whose power supply or communication interfaces are deeply coupled with the gateway fall within the mandatory scope; standalone sensors are not currently applicable, but possible future expansion should be monitored.

Prioritize Contact with the 12 Authorized Laboratories and Reserve Testing Slots

To avoid passive waiting, it is recommended to immediately sort out the list of models planned for shipment in Q3, submit pre-communication letters to the authorized laboratories published on the TÜV Rheinland official website, and lock in a testing window that can begin within 6–8 weeks. Some laboratories support expedited channels (subject to additional feasibility assessment).

Simultaneously Review Existing EMC Design Documents and Test Reports

Refer to the dynamic scan parameters in the appendix of TR-EMC-2026 (such as frequency step accuracy, dwell time, and modulation method) to check whether the original design has sufficient margin reserved; existing EN 61000-6-2/-4 reports cannot be directly reused, and supplemental test data must be added according to the new method.

Synchronize Certification Progress with End Customers in Advance

If you have already entered the technical review process for new projects with customers such as Siemens and Bosch, you should proactively provide a TR-EMC-2026 certification schedule (including estimated completion time, laboratory name, and test outline number) to avoid project milestone delays caused by unsynchronized information.

Editorial Viewpoint / Industry Observation

From an industry perspective, the launch of TR-EMC-2026 is more like a clear technical market access signal rather than a transitional temporary measure: it has been directly listed by leading German manufacturers as a mandatory threshold for new projects in the second half of the year, and the testing method is non-substitutable (dynamic scanning reflects radio frequency interference response under real operating conditions), indicating that EMC compliance for EU industrial IoT equipment is shifting from “static compliance” to “operational robustness” assessment. Analysis suggests that this standard will not expand to all sensor categories in the short term, but as carriers of core parameters in industrial process control, pressure/flow types have a strong demonstration effect; whether it will subsequently extend to other sensor types such as temperature and displacement will require continued observation of the revision notes issued by TÜV Rheinland during 2026.

Conclusion:
TR-EMC-2026 is not a routine standard update, but an EMC compliance paradigm upgrade oriented toward industrial IoT scenarios. It currently means that the export-oriented sensor manufacturing chain needs to simultaneously accelerate in three dimensions: testing capability, design response, and customer coordination. It is more appropriate to understand this as a technical market access adjustment focused on specific product categories, with clear time nodes and strong enforcement constraints, rather than a broad forecast of industry trends.

Information source note:
Main sources: TÜV Rheinland global announcement (released on April 22, 2026); updated procurement technical specification documents from Siemens and Bosch (confirmed through internal channels); TÜV Rheinland official website list of authorized laboratories (as of April 22, 2026).
Parts requiring continued observation: whether TR-EMC-2026 will initiate the procedure for conversion to an EN standard within 2026; whether the dynamic scan testing method will be adopted for reference by CISPR or other IEC working groups.