This is a kind of smart electricity meter, consisting of a full-viewing angle color LCD screen, easy to read current electric energy, cumulative electric energy. Supports the measurement of power, current, voltage, temperature and humidity of connected appliances. Electric energy and timing can be reset. Electric energy and timing have a power-off memory function. Features: Made of flame-retardant nylon material, stable installation with fine durability and can provide a long service time. Full viewing angle color LCD display, easy to read current electric energy, cumulative electric energy. Supports measuring power, current, voltage, temperature and humidity of connected devices. Electric energy and timing can be reset. Electric energy and timing have a power-off memory function. Rated frequency 45-65Hz. Instructions for use: & nbsp; Click the MENU button on the panel to display the current electric energy and cumulative electric energy. Electric energy reset and timing 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 cumulative electric energy reset. When the number flashes, double-click the button to reset. Press and 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 Packing List (KWS-AC300-100A Closed Type): 1 * Smart Electricity Meter 1 * Mutual Inductor 2 * Cable Note: The data are all manual measurements, please allow an error of 1-3cm; due to the difference in light and display, there would be a certain color difference, please refer to the actual object received.