This Tuya intelligent energy meter is controlled by the Tuya APP, the app displays real-time power, current, voltage, power factor, frequency, and electricity statistic for each channel in forward and reverse direction. Power consumption measurement support. The device is able to calibrate by adjusting the percentage. Features: Powerful Function: High-precise measurement, real-time monitoring of voltage, current and power of each channel when generating and consuming kilowatts. Mobilephone APP Control: The app displays real-time power, current, voltage, power factor, frequency, and electricity statistic for each channel in forward and reverse direction. Power Statistics: APP program displays hourly, daily, monthly and yearly electricity. Real time monitor to avoids abnormal power usage. Automation Function: It allows to make a scene for this device working with other tuya devices. Set automation for the measured device, for example, if power or current is over the setting value, then other tuya device starts to work. Feature-rich Design: Power consumption measurement support. The device is able to calibrate by adjusting the percentage. Easy Installation: 35mm rail mounting, no need to replace wires connection is safer, just put the wires in the clip and measure. Specifications: Name: Energy Meter Material: PC Version: WiFi version, ZigBee version (optional) Type: 1CT, 2CT (optional) Current: 0.2-80A Input voltage: 110-240 V, 50/60Hz Accuracy grade: 1.0 Working current: -10℃ to 55℃ Wireless type: 2.4GHz Item size: 47 * 47 * 18mm / 1.85 * 1.85 * 0.71in Package size: 1CT: 100 * 100 * 30mm / 3.94 * 3.94 * 1.18in 2CT: 115 * 115 * 40mm / 4.53 * 4.53 * 1.57in Package weight: 1CT: 150g / 5.29ounce 2CT: 200g / 7.05ounce Packing List (1CT): 1 * Energy Meter 1 * CT OR Packing List (2CT): 1 * Energy Meter 2 * CT