Fangrui Product Details 1. 3 Phase Alternating Current Phase Meter Phase Detector Rotation Tester Indicator Digital Phase-order Indicator 2. Operating Voltage: 60v-600v 3. Frequency Range: 20hz-400hz 4. Withstanding Voltage: Up To 2000v Minutes (pulse Voltage 4000v) 5. Continuous Use Time: 200v Acv When: 60 Minutes 6. Using Limit Time: 600v Acv: 4 Minutes 7. Test Lead Length: About 57cm 8. Weight: About 135g 9. Packing List: Mainframe X 1, Crocodile Clips X 3, Cloth Bag X 1, Manual X 1 10. Features: 11. It Can Be Used To Detect The Open Phase State And Phase Sequence, Phase Sequence By The Light-emitting Diode (led) And Buzzer Indication 12. Multi-functional Design, Non-contact Detection Of Safety Measurements, With Phase Sequence Measurement Charged Detection And Disconnection Detection Phase Detection Function 13. With Automatic Shutdown And Buzzer Indication Function, Suitable For Home Measurement, Electrical Maintenance, Factory Measurement, Building Measurement, Electric Pump Overhaul, Etc. 14. Compact And Lightweight, Easy To Carry, Fast And Accurate Testing, High Security, No Battery Design, Without Batteries Can Also Work Normally, Easy To Use, Equipped With Indicators, Convenient And Easy To Understand 15. The Instrument Is Equipped With Three Test Pens, Fish-eye Needle Or Wire Connector Diameter Of Not More Than 10 Mm Pins Can Be Connected To The Crocodile Clips, Anti-electrocution Protection Crocodile Clips, The Test Fixture Will Be Inserted Into The Probe Of The Metal Probes And Tightened To Prevent Electric Shock