Fangrui Product Details 1. Tasi Ta804a Auto Digital Intelligent Multimeter Ohm Ncv Voltage Meter 2. Dc Voltage: 0.9v-600v (ta804a), 0.1mv-600v (ta804b) 3. Ac Voltage: 0.9v-600v (ta804a), 1mv-600v (ta804b) 4. Frequency: 40hz-5999hz (ta804a), 40hz-1khz (ta804b) 5. Ta804b Capacitor: 0.1uf-60000uf 6. On-off Buzzer: Within 50 Ohms (sounding) 7. Ncv Voltage Sensing: Yes 8. Zero Line Recognition: Yes 9. Flashlight Lighting: Yes 10. Value Lock: Yes 11. Low Voltage Reminder: Yes 12. Over-range Prompt: Ol 13. Positive And Negative Polarity Reminder: Yes 14. Analog Bar: 21 Segments 15. Sampling Rate: About 3 Timessec 16. Display Count: 5999 Digits 17. Automatic Shutdown: Yes (can Be Canceled Manually) 18. Power Supply: 1 Aaa Battery (not Included) 19. Packing List: Host X1, Manual X1, Meter Pen X2, Screwdriver X1, 20. Display Size: About 7.3x5.3 Cm 21. Overall Size: About 14.8x7.6x1.9 Cm 22. Weight: Ta804a Is About 167 Grams, Ta804b Is About 175 Grams 23. Features: 24. Quick Recognition, Intelligent Measurement, Large Screen Display 25. Adapt To Multiple Occasions: Electrician Installation Of Home Improvement Lines, Maintenance Of Electronic Products, Maintenance Of Electric Car Circuits, Etc. 26. Ncv Voltage Sensing: There Is A Ncv Test Point At The Front Of The Meter, Which Is Close To The Ac Voltage. According To The Different Strength Of The Signal, The Buzzer Will Emit An Uninterrupted Sound, And The Analog Bar Will Also Be Based On The Strength Of The Signal. Show Different Number Of Segments 27. Zero Live Wire Measurement: Insert The Red Test Pen Tip Into The Neutral Or Live Wire. If It Is Live Wire, The Buzzer Will Sound Continuously, And The Panel Indicator Will Flash At The Same Time, And The Analog Bar On The Screen Will Display Full Grid. Intermittent Prompt Sound, The Screen Simulation Bar Shows Half Or One Grid 28. With Flashlight Lighting, It Is Convenient For Users To Measure In The Dark Environment 29. Thin And Light Body, Easy To Carry And Use