1,MAIN FUNCTION: This device can monitor energy consumption. If there is a solar photovoltaic system at home, after installation according to our wiring diagram, this device can monitor the electricity generated by the solar photovoltaic system and the energy consumed by the urban power grid. 2,WIFI CONNECTION: After connecting this device to WiFi (WiFi can access the internet), users can monitor the device status anytime and anywhere on the for TUYA app or for SMART LIFE app (mobile phones can obtain internet signals). Smart energy meter with a 120A current transformer CT clamp sensor, has a current measurement range 120A. 3,REAL TIME MONITORING: Real time energy monitoring of voltage, current, power factor, active power, and frequency; Compatible with for Google Home Assistant. 4,SUPPORT AUTOMATION: Consumption meter supports automation of click to run and other for TUYA devices. 5,APP RECORD: You can view the hour, day, month, year energy consumption records on the APP, which can keep records for up to 1 year Item Type: WIFI Smart Energy Meter Material: ABS Circlip: 120A x 1 Support System: compatible for Google Home WIFI: 802.11 B G N20 N40 at 2.4GHz BLE: BT 4.2 Low Energy RF Characteristics: Working Frequency: 2.4GHz, built in antenna Working Voltage: AC90-250V 50 60Hz Measuring Voltage Range: 0.2A-80A Calibration Measurement Accuracy: Less than or equal to 100W (within 2W) Greater than 100W (within 2%) Report Cycle: Every 15 seconds Temperature Range: -20 to 55 ℃ Humidity Range: Less than or equal to 90% non condensing Installation Method: 35MM DIN rail 1 x Monitor 1 x Manual 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.