Usage Tips:Made of flame-retardant materials to the safety and reliability of the device; equipped with a high-definition LED LCD screen with bright colors and wide viewing angle to accurate and intuitive data reading 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, 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. 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. Colour:White Material: Plastic Type: A:WIFI model 40-300V built-in 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 There are some differences between the actual product and the picture due todifferent batches, which will not affect normal use Package Contents: 1x Digital Display Electricity Meter 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.