It 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. There are 3 types to choose from: KWS-AC300-10A split type mutual inductor, KWS-AC300-100A split type mutual inductor, KWS-AC300-100A closed type mutual inductor, you can choose according to your demands. Features: Made of flame retardant nylon, stable installation with fine durability and can provide long service time. Wide angle color LCD display comprehensive vision, easy to read current electric energy, cumulative electric energy. Supports power, current, voltage, temperature and humidity measurement of connected devices. Electric power and timing can be reset. Electric power and timing have power-off memory function. Rated frequency 45-65Hz. The choice is yours between 3 types: KWS-AC300-10A split type mutual inductor, KWS-AC3 split type mutual inductor 00-100A, KWS-AC300-100A closed type mutual inductor, you can choose according to your demands. The difference between split type mutual inductor and mutual inductor closed type: The split type mutual inductor: equipped with a buckle for easy installation and easy assembly. The closed type mutual inductor: the wires should be threaded from the center of the transformer circle. Instructions: nbsp; Click the MENU button on the panel to display the current electric energy and the cumulative electric energy. Electric energy and timing reset method: Press MENU button and hold 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 + P+ VO Model: KWS-AC300-10A split type mutual inductor, KWS-AC300-100A split type mutual inductor, KWS-AC300-100A closed type mutual inductor (optional) Model: KWS-AC300-10A nbsp; Voltage: AC50-300V Current: 0-1OA Power: 0-3000W Capacity: 0.01-19999Kwh Duration: 0- 200H Temperature: -10-99 Item size: 85 * 44 * 21mm / 3.35 * 1.73 * 0.83in Item weight: 60g / 2.12 ounce Package size: 50 * 27 * 88mm / 1.97 * 1.06 * 3.46in Package weight: 65g / 2.29ounce Model: KWS-AC300-100A Voltage: AC50-300V Current: 0-100A Power: 0-30KW Capacity: 0.01-19999Kwh Duration: 0-200H Temperature: -10 -99 Item size: 85 * 44 * 21mm / 3.35 * 1.73 * 0.83in Item weight: 90g / 3.17ounce Package size: 64 * 50 * 88mm / 2.52 * 1.97 * 3.46in Package weight: 95g / 3.35ounce Packing List (KWS-AC300-10A nbsp;): 1 * Smart Electricity Meter OR Packing list (KWS-AC300-100A-split type): 1 * co Smart Electricity Meter 1 * Mutual Inductor 1 * Cable OR Packing list (closed type KWS-AC300-100A ): 1 * smart electricity meter 1 * mutual inductor 2 * cable loading/alt=lazy loading/lazy lazy/