ZOYI VC921 Pocket Portable Auto-Ranging Digital Multimeter 1. DCAC voltage range (resolution): 400.0mV (0.1mV), 4.000V (0.001V), 40.00V (0.01V), 400. 0V (0.1V), 600V (1V) 2. Resistance range (resolution): 400.0 ohm (0.1 ohm), 4.000 kOhm (0.001 kOhm), 40.00 kOhm (0.01 kOhm), 400.0 kOhm (0.1 kOhm), 4.000 megohm (0.001 megohm), 40.00 megohm (0.01 megohm) 3. Capacitance range (resolution): 9.999nF (0.001nF), 99.99nF (0.01nF), 999.9nF (0.1nF), 9.999uF (0.001uF), 99.99uF (0.01uF), 999.9uF (0.1uF), 9.999mF (0.001mF) 4. Frequency range (resolution): 99.99Hz (0.01Hz), 999.9Hz (0.1Hz), 9.999kHz (0.001kHz), 99.99kHz (0.01kHz), 999.9kHz (0.1kHz), 9.999MHz (0.001MHz) 5. Display (LCD): 4000 words 6. Range: automaticmanual 7. Sampling rate: 3 timessecond 8. Function: diode, onoff, true RMS, data retention, low battery indication, automatic shutdown 9. Material: ABS 10. Power supply: 1.5V AAA battery (not included) 11. Working environment: - Temperature: 0-40 degrees Celsius - Humidity: less than 75% 12. Storage environment: - Temperature: -20 - 60 degrees Celsius - Humidity: less than 80% 13. Size: about 12.5 x 8 x 1.95cm 14. Weight: about 107g Features: 1. 4000 count high-precision display 2. Pocket-sized and portable 3. Automatic range 4. Support data retention 5. Frequencyduty cycle measurement 6. Diodebuzzer switch measurement 7. Computer self-calibration design