Fangrui Product Details 1. Bside A1 Dual Mode Smart Handheld High Precision Detection Electrician Voltage Multimeter Without Battery 2. Features: 3. Dual-function Anti-burn Multimeter, Smart Test Pen, Fully Automatic 4. Sound And Light Alarm, Two-color Display 5. Easy Detection Of Live Zero Firewire Jack Line 6. Automatic Identification, Live Linezero Line Distinction, Breakpoint Detection, Sound And Light Alarm, On-off Beep, Automatic Shutdown, Ncv Voltage Detection, Replaceable Test Leads, Flashlight, Etc. 7. Directly Measure Ac And Dc Voltage And Resistance On And Off When Power On, No Need To Shift Gears 8. Non-contact Zero-fire Judgment, Insulation Operation, Safety Check 9. High-brightness Led, Powerful Wick, High-brightness Output, High-transmittance Reflector, Using Anti-reflection Tempered Lens, Large-scale Spot Coverage 10. Extremely Fast Measurement, Intelligent Identification 11. High Sensitivity Mode, Top Induction, Identify Dangerous Voltage Signals 12. Parameter: 13. Range: 0-500v 14. Resistance: 10 Megohms 15. Voltage Frequency: 1000hz 16. Power Supply: 2 Aa Batteries (not Included In Shipment) 17. Automatic Shutdown: 5 Minutes 18. On-off Buzzer: The Measured Resistance Is Less Than 30 Ohms, The Buzzer Sounds 19. Non-contact Voltage Detection Alarm: 6-1000v Ac Voltage 20. Storage Temperature: -10 To 60 Degrees Celsius 21. Working Temperature: 0-40 Degrees Celsius 22. Dimensions: 12.7 X 4.2 X 2.5cm 23. Net Weight: 67g 24. Packing List: 25. -.1 X Host 26. -.1 X Chinese And English Dual Instruction Manual 27. -.1 X Test Lead 28. -.1 X Screwdriver 29. -.1 X Box