Fangrui Product Details 1. Tasi Ta13c Smart Pen Multimeter Digital High Precision Compact Portable Multimeter 2. Voltage: Range: 0.8-600v; Resolution: 0.01-1v 3. Capacitance: Range: 1nf-4mf; Resolution: 0.01nf-0.001mf 4. Resistance: Range: 1 Ohm-40 Megohm; Resolution: 1 Ohm-0.01 Megohm 5. Frequency: 40hz-4mhz 6. Display: Four-digit Display, Up To 4000 7. Functions: On-off Beeping, Diode Measurement, Zero-firewire Identification, Ncv Sensing, Phase Sequence Judgment, Flashlight Illumination, Va Color Screen, Data Retention, Auto-ranging 8. Sampling Rate: 3 Times Sec 9. Auto Shutdown: 15 Minutes 10. Power Supply: 2 X 1.5v Aaa Batteries (not Included) 11. Operating Environment: -10-40 Degrees Celsius, Within Relative Humidity 12. Storage Environment: -10-60 Degrees Celsius, Relative Humidity (remove The Battery) 13. Packing List: Main Unit X 1, Meter Pen X 2, Manual X 1 14. Overall Size: About 17.5 X 3 X 2.6cm 15. Display Size: About 3 X 1.5cm 16. Weight: About 76g 17. Features: 18. Ncv Voltage Sensing 19. Pen Tip Contact To The Measured Line Ends, The Path Will Send Out An Alarm Tone And Indicator Light Prompts, Broken Circuit Is No Response 20. Phase Sequence Judgment, The Screen Shows Pa, Start Measuring, Display A Constantly Flashing Will Be The Tip Of The Pen Close To The First Phase Line, Wait For A Beep To Show Flashing B And Then The Tip Of The Pen Close To The Second Line, Wait For A Beep To Show A Flashing C Symbols, Will Be The Tip Of The Pen Close To The Third Line, Wait For A Beep To Complete The Test, The Screen Displays Results 21. According To The Parameters Of The Object Under Test, With Indicator + Sound Prompts 22. In The Dark Environment, You Can Turn On The Flashlight Lighting Function