This is a kind of smart electricity meter, consisting of full viewing angle color LCD display, easy to read current electric energy, cumulative electric energy. Supports measurement of power, current, voltage, temperature and humidity of connected devices. Electric power and timing can be reset. Electric power and timing have power-off memory function. Features: Made of flame retardant nylon, stable installation with fine durability and can provide long service time. Full viewing angle color LCD display, easy to read current electric energy, cumulative electric energy. Supports measurement of power, current, voltage, temperature and humidity of connected devices. Electrical energy and timing can be reset. Electric power and timing have power-off memory function. Rated frequency 45-65Hz. <p > Instructions: & nbsp; Click the MENU button on the panel to display the current electric energy and cumulative electric energy. Electric energy and timing reset method: Press and hold the MENU button for 5 seconds, the number in the timing area will flash, then click the button to select timing, current electric energy and reset accumulated electric energy . When the number flashes, double click the button to reset. Hold the button for 5 seconds to save the settings. Specifications: Name: smart electricity meter Material: ABS+PC+VO Model: KWS-AC300-100A Closed Type Mutual Inductor < p> Packing list (closed type KWS-AC300-100A): 1*smart electricity meter 1*mutual inductor 2*cable Note: The data are all manual measurement, please please allow 1-3cm error; due to the difference in light and display, there would be a certain color difference, please refer to the actual object received.