The Shurite 8604Z is a high-end professional 3-phase wattmeter that uses precision universal wattmeters as its core components. It is primarily intended for use in electrical power systems, and accurately measures parameters such as active and reactive power, power factor, current, voltage, and other associated electrical characteristics. The 8604Z features a large LCD display and user-friendly interface, with accuracy levels of 0.5%. It also features a user-selectable auto-off timer and insulated terminals for safety. Additionally, its wide range of calibrated current/voltage terminations ensure compatibility with virtually any application.