This PMB02 digital LCD energy meter socket is a practical power monitoring tool equipped with intuitive green operation buttons and a non-backlight LCD screen. It accurately measures voltage, current, power factor, cumulative energy consumption and calculates electricity costs for connected household and industrial appliances. Built with overload alert function, it effectively prevents damage caused by excessive load. Compact plug-and-play design requires no complicated installation, suitable for monitoring refrigerators, heaters, chargers and other electrical devices. Users can track power consumption data easily to optimize electricity usage and cut energy expenses. The stable circuit structure guarantees long-term reliable daily use for home, office and workshop scenarios.