Features 1、Electrical Monitoring: Equipped with 3 x 500A sensors, this energy meter can accurately monitor your air conditioning, stove, water heater, washing machine, dryer, etc. 2、Energy Monitoring: This meter helps monitor the actual electricity in your home anytime, anywhere to prevent expensive repairs, save energy, and costs. 3、Multi Function: This energy monitor can measure voltage, current, power factor, is a highly practical assistant for energy monitoring in your homes. 4、WIFI Connection: Supports 2.4 GHz WIFI connection, you can monitor real time energy usage data through mobile APP, fast and accurate. 5、Easy to Use: The power clamp is lightweight and easy to install, can help you monitor the electricity consumption in the facility by connecting the clamp to the power cord. Specification Item Type: WiFi Energy Meter Material: ABS, Metal Model: PC 321 W 500 TY WIFI: 802.11 B G N20 Operating Frequency: 2.4GHz, external antenna Output Power: +20dBm CT Current: 3 x 500A Connection Voltage: 100-240V Calibration Measurement Accuracy: ≤100W (within ±2W) >100W (within ±2%) Temperature: -20℃ to +55℃ Humidity: ≤90% non condensing Package List 1 x WiFi Energy Meter 1 x Antenna 1 x Antenna Base 4 x Accessories 1 x User Manual