On April 25, 2026, Guangdong Zhuangli Load Measurement Technology announced that its new-generation series of industrial pressure sensors had passed the TÜV Rheinland IEC 61508 SIL2 functional safety certification. This certification covers applications across a wide temperature range from -40℃ to 150℃, and is a necessary market-entry qualification for safety-critical sectors in the EU such as petrochemicals, electric power, and rail transit, marking substantial progress in the functional safety compliance capability of domestically produced industrial sensors. Companies in relevant niche industries should pay attention to the structural impact this may have on supply chain qualification, system integration, and export compliance.

Event Overview

On April 25, 2026, Guangdong Zhuangli Load Measurement Technology officially announced that its new-generation series of industrial pressure sensors had passed the SIL2 functional safety certification conducted by TÜV Rheinland in accordance with the IEC 61508 standard. The certification covers the functional safety performance of the products within the operating temperature range of -40℃ to 150℃. At present, 3 German system integrators have signed the first batch of trial-use agreements.

Which niche industries will be affected

System integrators (including overseas)

This certification provides critical compliance support for entry into industrial control systems in the EU with high safety levels. For integrators providing Safety Instrumented Systems (SIS) or safety-related subsystems for sectors such as petrochemicals, electric power, and rail transit, using SIL2-certified sensors can shorten project safety assessment cycles and reduce third-party verification costs. The impact is mainly reflected in component selection compliance during the solution design stage, project delivery cycles, and responsiveness to customer audits.

Industrial equipment manufacturers (OEMs)

For manufacturers exporting safety-related equipment to the EU market, if their products involve pressure monitoring links and these form part of a safety loop, then certified functional safety components must be used. This certification gives Guangdong Zhuangli products the potential to directly replace imported SIL2-grade sensors. The impact is mainly reflected in BOM compliance review, support capability for complete-machine safety certification (such as EN 61511), and the stability of localized supply.

Domestic end users in safety-critical sectors

Operations, maintenance, and procurement departments in industries such as petrochemicals, electric power, and rail transit need to reassess the application boundaries of SIL2-certified domestic components when promoting localization substitution or building new Safety Instrumented Systems. The impact is mainly reflected in updates to technical specifications, adjustments to supplier qualification lists, and requirements for obtaining safety lifecycle documents (such as safety manuals and FMEDA reports).

What key points should relevant companies or practitioners focus on, and how should they respond at present

Pay attention to the specific certified models and technical boundaries covered by the certification

Current public information has not disclosed details such as the specific certified models, measurement ranges, output interface types, and supporting safety manuals. Relevant companies should continue to track the subsequent official technical documents released by Guangdong Zhuangli, with particular focus on confirming whether the models involved match their own application scenarios (such as explosion-proof ratings, EMC ratings, and diagnostic coverage DC values).

Pay attention to the trial progress and feedback direction of German system integrators

3 German system integrators have signed the first batch of trial-use agreements, and the actual test dimensions (such as field environmental adaptability, diagnostic response consistency, and communication compatibility with mainstream DCS/SIS platforms) will directly affect the possibility of subsequent large-scale adoption. Relevant parties are advised to simultaneously monitor the progress of technical communications, rather than relying solely on the certification certificate itself.

Differentiate between certified qualifications and complete-system-level certification

IEC 61508 SIL2 certification targets the functional safety capability of a single component, and is not equivalent to SIL2 certification for a complete Safety Instrumented System (SIS). Companies need to be clear that adopting this sensor only solves component-level compliance issues; the system integrator must still complete the overall safety verification and document delivery. Avoid mistaking component certification for a universal pass to system qualification.

Sort out in advance the replacement path for similar imported components in current procurement lists

For companies that have long relied on imported SIL2-grade pressure sensors, this certification can serve as a basis to launch internal feasibility evaluations for substitution. The focus should be on comparing non-certification-dimension indicators such as accuracy, temperature drift, MTBF, safety failure modes, and local technical support responsiveness, so as to avoid using certification alone as the sole basis for switching.

Editorial Viewpoint / Industry Observation

From an industry perspective, this certification is more appropriately understood as a phased development with signaling significance, rather than as an already established large-scale substitution outcome. On the one hand, SIL2 certification itself is a necessary condition for entering safety-critical markets, but not a sufficient condition; on the other hand, the trials by German system integrators are still at an early stage and have not yet demonstrated the depth of engineering adaptability in real-world scenarios. From an observational perspective, its value lies in validating the possibility that domestic enterprises have put in place systematic capabilities in functional safety development processes (such as safety lifecycle management, FMEDA analysis, and hardware failure rate modeling). The industry needs to continue paying attention to whether application guidelines aligned with IEC 61511 will subsequently be released, whether the path will be extended to SIL3 certification, and whether a localized safety assessment support mechanism jointly established with TÜV Rheinland will be created.

Conclusion: Guangdong Zhuangli's attainment of TÜV Rheinland SIL2 certification reflects that domestically produced industrial sensors have taken a substantial step forward in building functional safety compliance capabilities, but its industrial impact is still in the early stage of transmission. At present, it is more appropriate to understand this as "compliance capability has been preliminarily recognized by an international third party", rather than "the market landscape has already changed". All parties in the industry should maintain pragmatic attention, focus on the implementation of technical details and progress in validation under real scenarios, and avoid overinterpreting a single certification event.

Information source note:
Main source: official announcement from Guangdong Zhuangli Load Measurement Technology (April 25, 2026);
Parts requiring continued observation: specific list of certified models, release timeline of supporting safety documents, and the trial period and feedback conclusions of German system integrators.