With the introduction of increasingly stringent energy efficiency standards, energy-optimized devices are becoming the focus of research and development – both in the field of white household appliances and in industrial applications such as air conditioning systems. A precise performance evaluation, the measurement of extremely low standby consumption, and reliable measurement accuracy are at the core of the requirements for modern power measuring devices. The UTE300 digital power meter series from UNI-T has been specifically designed to meet these requirements. The series includes four models – UTE310, UTE310G, UTE310H, and UTE310HG – and offers high measurement accuracy as well as wide measurement ranges. While the UTE310 and UTE310G measure currents from 25 µA to 20 A, the UTE310H and UTE310HG cover an extended range from 5 mA to 50 A, making them ideal for a variety of measurement tasks in development, quality assurance, and production.