The PQ20 is a Class A voltage logger built on advanced power quality measurement architecture, delivering highly accurate and standards compliant voltage monitoring. Designed specifically for voltage focused applications, it provides precision measurement without the complexity of full power analysis, making it ideal for straightforward compliance and diagnostic work.

The unit continuously records phase to neutral and ground to neutral voltage, total harmonic distortion (THD), individual harmonics, flicker severity, and mains signalling activity. Its Class A accuracy ensures reliable reporting aligned with international standards such as IEC 61000-4-30, making it suitable for regulatory and contractual compliance assessments.

The PQ20 is particularly well suited for EN50160 voltage compliance monitoring, investigating customer voltage complaints, analysing flickering lights, identifying voltage dips, swells and interruptions, and detecting disturbances from ripple control or mains signalling systems. For utilities, network operators and electrical contractors who require dependable, plug and play voltage logging with certified accuracy, the PQ20 offers a practical and efficient solution.