Feature: 1. Appliance Monitoring: This meter is equipped with 3 80A sensors, which can accurately monitor air conditioning, stoves, water heaters, washing machines, dryers, etc. 2. Energy Monitoring: The 3 phase ammeter can measure voltage, current and power factor, supports for ZigBee 3.0 technology, 2.4GHz external antenna frequency. 3. Real Time Data: Need to be used in conjunction with the gateway to monitor energy usage through mobile APP, providing 2s data with an accuracy of ±2%. 4. Easy Operation: This 3 phase clamp meter is lightweight and compact, and can monitor electricity consumption by connecting the clamp to the power cord. 5. Household Use: The smart KWH meter is 3 phase 4 wire design, suitable for household use, real time monitoring of actual electricity, greatly saving energy. Specification: Item Type: 3 Phase Energy Meter Model: PC 321-Z-80-TY For ZigBee: 2.4GHz IEEE 802.15.4 For ZigBee Profile: For ZigBee 3.0 Operating Frequency: 2.4GHz External Antenna Output Power: +20dBm CT Current: 3 x 80A Connection Voltage: 100-240V Calibration Measuring Accuracy: ≤100W (within ±2W), >100W (within ±2%) Temperature: -20-55℃ Humidity: ≤90% No Condensation. Package List: 1 x Smart Meter1 x User Manual1 x Antenna1 x Antenna Base4 x Accessories Note: The power clamp 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 security.