Fangrui Product Details Zigbee Version: Support Tuya Zigbee Hub/ Zigbee 2mqtt/ Home Assistant Control. Wifi Version: Tuya App/ Smart Life App Control. New Update Version, Mini Size And With Wide Volatge. Easy-to-use: Installation Alone Can Help Ev Charger Meet Residual Current Measuring Of Voltage, Current, Power, Power Factor, Energy High-precision Of Energy Measurement Within Tolerance Alarm Message Delivering In The Event Of Abnormal Power Supply Energy Measurement: Accumulated Energy, Hourly /daily /monthly Energy Measured Key Data: Voltage, Current, Power, Power Factor, Temperature Alarm Sending: Over/under Voltage, High Temperature, High Power, High Consumption 1mw (18mm) Width Ultra-compact Design Colour:white Material:plastic Package Contents: 1 X Energy Meter Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.