Features Appliance Monitoring: 3 phase smart electricity meter with three 750A sensors, you can accurately monitor your air conditioner, stove, water heater, washer, dryer, etc. Support linkage for Tuya. Energy Monitoring: This smart electricity meter can monitor your home's actual power anytime, anywhere to save energy, and save maintenance. Measure voltage, current and power factor. Realtime Energy Data: 2.4GHz WIFI and internet connection are required to monitor energy use via a mobile APP for this meter. Provides 2 seconds of data accuracy from plus minus 2%. Suitable Scenario: The smart WiFi energy electric monitor meter is suitable for factory, office building, home and so on. Easy to Use: The energy meter power clip is lightweight and easy to install, and helps you monitor power usage in your facility by connecting the fixture to the power cord. Specification: Item Type: WiFi 3 Phase Smart Electricity Meter Material: ABS, Metal WIFI: 802.11 B G N20 Operating Frequency: 2.4GHz, external antenna Output Power: +20dBm CT Current: 3 x 750A Access Voltage: 100-240V Calibrated Metering Accuracy ≤100W: ±2W within >100W: ±2% or less Temperature: -20 - +55°C  Humidity: ≤ 90%, non condensing Package List: 1 x 3 Phase Smart Electricity Meter 1 x Instruction Manual 1 x Antenna 4 x Accessories Note: Important safety information: The power clip must be installed and repaired by a qualified person. Do not touch the terminal of the device during the test, and turn off all power to the device before installation. To ensure your safety. Package List 1 x 3 Phase Smart Electricity Meter 1 x Instruction Manual 1 x Antenna 4 x Accessories