Landis+Gyr (SIX: LAND) is proud to announce that its E860 intelligent grid edge sensor has been awarded PQ Class A certification under IEC 61000-4-30. This milestone marks a significant step in grid visibility by extending premium, reference-grade power quality measurement beyond standard high-precision metering. 

Traditionally, dedicated PQ Class A devices have been reserved for high-voltage substations and critical transmission nodes, while the medium and low voltage segments relied on simpler sensors with limited PQ capabilities. With the E860, Landis+Gyr is bringing high-end functionality into distributed grid sensors so that DSOs and TSOs can access permanent, detailed PQ data closer to customers and assets connection points. 

The E860’s Class A certification means energy producers, TSOs, DSOs and large industrial consumers can: 

• Maximise their smart grid investment – one device for both metering and PQ sensing, reducing the need for standalone PQ analysers. 

• Achieve end-to-end PQ visibility – from generation and transmission down to secondary substations and end-consumer connections. 

• Use collected data to detect and respond early to PQ issues, increasingly driven by DER integration and EV adoption – such as voltage dips, harmonics, flickers, unbalance, and more. 

“Achieving PQ Class A in the E860 is more than a technical certification. It marks a significant milestone that brings specialist precision to a wide range of edge point configurations,” said Rostislavas Marcenko, Head of BU Electicity ICG at Landis+Gyr.   

“Utilities can now access reference-grade power quality data exactly where it is needed, without added complexity of dedicated equipment or system. This sets a new benchmark for how the grid can be measured and managed in the era of decentralised energy networks,” added Tamás Pintér, Head of Product Management ICG at Landis+Gyr. 

By establishing this new class of metering-based PQ device, Landis+Gyr enables utilities to combine scalability of premium smart grid meters with the precision of reference-grade PQ instruments, giving operators the tools to integrate renewables effectively, safeguard assets and ensure long-term grid reliability.