Fangrui Product Details 1. Pzem-061 4 In 1 Dc Digital Display Meter Voltage Measuring Instrument, Ac 80-260v, 100a(black) 2. Product Model: Pzem-061 (v2.0) 3. Function 4. Electrical Parameter Measurement Function (voltage, Current, Active Power, Electric Quantity). 5. Overload Alarm Function (over Power Alarm Threshold, Backlight And Power Flashing). 6. Power Alarm Threshold Presetting Function (you Can Set The Power Alarm Threshold By Yourself). 7. Power Button Reset Function. 8. Power Off Data Saving Function. 9. Large-screen Lcd Full Display Function (display Voltage, Current, Active Power And Electric Quantity At The Same Time). 10. Backlight Function. 11. Display And Buttons 12. Matters Needing Attention 13. This Module Is Suitable For Indoor Use And Cannot Be Used Outdoors. 14. The Added Load Shall Not Exceed The Rated Power. 15. Make No Mistake About The Wiring Sequence. 16. Specification 17. Working Voltage: 80-260vac 18. Test Voltage: 80-260vac 19. Rated Power: 100a22000w 20. Operating Frequency: 45-65hz 21. Measurement Accuracy: Level 1.0