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 percent . 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. 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: and20dBm CT Current: 3 x 80A Connection Voltage: 100-240V Calibration Measuring Accuracy: ≤100W (within ±2W), >100W (within ±2 percent ) Temperature: -20-55℃ Humidity: ≤90 percent No Condensation 1 x Smart Meter 1 x User Manual 1 x Antenna 1 x Antenna Base 4 x Accessories Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.