Intelligent power display meters are used to measure the comprehensive parameter of the alternating power. It can measure very phrase’s voltage, current, active power, reactive power, apparent power, power factor, frequency, active power degree and reactive power degree simultaneously in the three-phrase alternating loop. This product is integrated within the micro-control computer, LCD display screen and can measure, display, self-calibrate and set independently. This product is also equipped with a standard communication interface and the switch output interface. It is helpful to realize remote control and measure functions. Due to small size, multi-function, high accuracy, it can be used to measure, calculate and monitor AC in a variety of occasions.