1. Accurate real-time metering, visible energy saving: using advanced power metering mode, real-time accurate monitoring of electrical energy consumption, to help you effectively analyze the situation of electricity consumption, rational planning of energy use, to achieve the purpose of energy saving and emission reduction. 2. Intelligent billing, cost control experts: built-in billing mode, according to the local price of electricity can be automatically calculated electricity expenditure, so that you know the cost of electricity, easy to manage the family or business electricity budget. 3. Multiple safety protection, peace of mind every day: integrated safety protection mode, including overload, short circuit, leakage and other protection measures, timely cut off the abnormal current, safety. 4. Flexible timer switch, automated life: support customized timer switch mode, according to the daily habits of preset electrical appliances working hours, automatically turn on or off the device, enjoy the convenience of intelligent life. 5. Cyclic Timing, Customized Scene Requirements: The cyclic switching mode allows you to set the cyclic opening and closing time intervals according to your needs, which is suitable for the maintenance cycle of specific equipment or lighting control of specific scenes, making the smart more in tune with your life rhythm. Can display voltage, current, kW, power factor, frequency and kWh Overvoltage protection value: 230-300-OFF Overvoltage recovery value: 225-295V Over-voltage protection action: 1-30S Overvoltage recovery delay time: 1-500S Undervoltage protection value: OFF-140-210V Undervoltage recovery value: 145-215V Undervoltage protection action: 1-30S Undervoltage recovery delay: 1-500S Overcurrent protection value:1-16A-OFF Overcurrent protection action: 1-30S Overcurrent recovery delay: 1-500S Continuous overcurrent protection times: OFF-1-20 Power limit protection: 0.22KW-3.52KW-OFF Power limit protection action: 1-30S Power limit recovery delay: 1-500S Continuous power limitation protection: OFF-1-20 Product size: 135x77x74.5mm Applicable to European standard countries. Color:White Material:ABS Package Contents: 1 * WIFI Smart Wattmete Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.