Tuya WiFi Home Intelligent Digital Display Electricity Meter DIN-Rail Voltage and Current Meter Multi-function Power Factor Frequency Metering Meters with Power Failure Memory Function Support Mobilephone Tuya APP Control D52-2066 DIN-rail digital multifunction meter displays six electric parameters such as AC voltage, current, active power, power factor, frequency, and electric energy in real-time, which comprehensively monitors the state of electricity consumption and brings the one-glance reading experience of electric power information ers. Built-in power failure memory function, the meter data will not be lost even if an accidental power failure appears. Tuya WIFI connection function gives the meter remote controlling ability, realizing transparent electricity consumption management, and easily master daily, monthly, and even yearly detailed electricity consumption statistics. Applicable to families, rental houses, hotels, lodging, office buildings, shopping malls, and other places and electrical equipment for power measurement, strong versatility, easy to install and use. Features: 【Premium Materials and LCD Display】: Made of PC flame-retardant materials to ensure the safety and reliability of the device; equipped with a high-definition LED LCD screen with bright colors and wide viewing angle to ensure accurate and intuitive data reading; equipped with a high-sensitivity, low-power intelligent chip, taking into account the accurate measurement and energy-saving operation. 【Multiple Electric Parameters Measurement】: D52-2066 DIN-rail digital multifunction meter displays six electric parameters such as AC voltage, current, active power, power factor, frequency, and electric energy in real-time, which comprehensively monitors the state of electricity consumption and brings the one-glance reading experience of electric power information ers. 【Worry-free Power Failure Memory Function】: Built-in power failure memory function, the meter data will not be lost even if an accidental power failure appears. And after power restoration, it can still accurately display the value of electrical energy before the last power failure, ensuring data continuity and accuracy of power management, so that users do not have to worry about it. 【Intelligent APP Remote Controlling】: Tuya WIFI connection function gives the meter remote controlling ability, users can view real-time data such as voltage, current, power, kWh, etc. whenever and wherever via mobilephone, realizing transparent electricity consumption management, and easily master daily, monthly, and even yearly detailed electricity consumption statistics. 【Convenient Installation & Wide Applicability】: Compact design, comparable in size to a 3P air switch, easy to install on the guide rail, no need for a professional electrician, and users can easily connect the wires by themselves. Applicable to families, rental houses, hotels, lodging, office buildings, shopping malls, and other places and electrical equipment for power measurement, strong versatility, easy to install and use. Specifications: Name: Electricity Meter  Material: PC Type: built-in type, external type (optional) Measurement accuracy: 1% ± 2 words AC voltage measurement ranges: 40.0-300.0VAC AC current measurement ranges: 0-100.0A, current display resolution is 0.01A Frequency measurement ranges: 45.0Hz-65.0Hz Power factor measurement ranges: 0.00-1.0OPF Active power measurement ranges: 0-45000W, the display resolution between 0-9999.9W is 0.1W, the remaining is 1W. Electricity measurement ranges: 0-99999kwh, the minimum display resolution is 0.01kwh for 0-999.99kwh, 0.1kwh for 1000. 0-9999.9kwh, and 1kwh for 10000. 0-99999kwh. Measuring speed: about 2 times per second Installation mode: DIN-rail type Item size: 54 * 80 * 64mm / 2.13 * 3.15 * 2.52in Package size: 85 * 65 * 60mm / 3.35 * 2.56 * 2.36in Package weight: 150g / 5.29ounce Packing List: 1 * Electricity Meter