The DM40 Digital Multimeter is ALIENTEK first newly launched high-performance 3-in-1 smart multimeter, with the following key features: 1. Integrates a multimeter, oscilloscope, and signal generator 2. Features a 3.5-inch 480×320 IPS capacitive touchscreen 3. 4½-digit multimeter with a count range up to 60,000 (C version) 4. Fully automatic mV/V range selection, plus an innovative uA/mA/A range design 5. AC+DC mixed measurements (B/C versions) 6. Super diode measurement, supporting resistance measurement (<1 kΩ) 7. Measurements of resistance, capacitance, continuity, frequency, temperature, and more 8. Manual (V/A/Ω) and automatic range selection, RLE relative measurement, and peak value measurement 9. Trend graph display, efficient data analysis, 3-range adjustable time base 10. Oscilloscope with 50 MSa/s sampling rate, 10 MHz bandwidth, and 10-bit vertical resolution 11. Oscilloscope vertical sensitivity: 10 mV to 10 V/div (x1); time base range: 100 ns to 50 s 12. The oscilloscope supports multiple trigger modes and types, as well as FFT and ABS calculations 13. The signal generator supports sine, square, triangle, and sawtooth waves, with a maximum frequency of 10 MHz 14. Operating time of over 10 hours

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