Watt Hour Meter High Accuracy Supports 22 KW Power Single Phase Electricity Meter for Voltage Current Power Frequency Power Factor AC40.0300.0V1COLOR LCD DISPLAY: The watt hour meter adopts a full view color LCD display with 178 degree wide viewing angle. Built in transformer for accurate measurement. 2ACCURATE POWER MEASUREMENT: This professional and advanced single phase home smart meter accurately measures voltage, current, power, frequency and power factor. 3DURABLE CASE: The smart watt hour meter case is made of PC flame retardant material for high temperature resistance and impact resistance. 4FAMILY FRIENDLY POWER SUPPORT: The single phase energy meter supports up to 22 KW of power and displays six functions on one screen. 5WIDE APPLICATIONS: Smart watt hour meter is suitable for chemical industry, power plants, automation equipment, DOS system, electromechanical equipment and other places.