Feature:1. Electrical Monitoring: Equipped with three 80A sensors to accurately monitor your air conditioning, stove, water heater, washing machine, dryer, etc. Support linkage with other for Tuya.2. Energy Usage Meter: Monitor your home actual electricity anytime and anywhere to prevent repairs and save energy. Can test voltage, current, and power factor.3. Real Time Energy Data: Requires 2.4 GHz WIFI and internet connection to monitor energy usage through mobile applications. Provide 2 second data with an accuracy of 2%.4. Easy to Operate: The power clamp is lightweight and easy to install. By connecting the clamp to the power cord, it can help you monitor the electricity consumption in the facility.5. Important Safety Information: The power clamp must be installed and repaired by professionals. During the testing, do not touch the terminals of the device, and turn off all power to the device before installation. Ensure your safety.Specification:Item Type: WiFi Smart Power MeterModel: PC 321-W-80-TYWIFI802.11 B/G/N20Operating Frequency: 2.4GHz external antenna. Output Power: +20dBmConnection Voltage: 100-240VCT Current: 3 x 80ACalibration Measurement Accuracy: 100W, within 2W. 100W, within 2%.Temperature: -20 ~ +55Humidity: 90% non condensing. .Package List:1 xWiFi Smart Power Meter1 x User Manual1 x Antenna4 x Accessory