• EEVblog 1723 - AlienTek DM40 Multimeter/Oscilloscope Review EEVblogDecember 6, 2025EEVblog,MultimetersComments Offon EEVblog 1723 - AlienTek DM40 Multimeter/Oscilloscope Review6,877 Views Facebook Twitter LinkedIn Review of theAlienTek DM40Multimeter/Oscilloscope 00:00 - Alientek DM40C Multimeter and Oscilloscope02:12 - Unboxing03:51 - What’s with the rotating tilting bail?06:15 - Power on08:53 - The Trend Chart is really nice10:19 - Online/Offline mode, what IS this?11:58 - Banana jacks please12:07 - Megaohms interference issue13:20 - Autoranging speed & Continuity & Diode14:08 - No AutoHold14:31 - Isolated inputs?14:58 - Calibration checks16:52 - Capacitance interference?18:37 - Relative mode19:10 - Colour LCD inside and outside20:04 - Temp is a bit off20:15 - No internal recording20:53 - Reading memory22:02 - Oscilloscope functionality26:28 - Function Generator28:46 - FFT29:09 - Bluetooth functionality31:33 - Three Finger Screen Shot32:31 - It’s got magnets!32:51 - Teardown37:56 - Analog front end38:46 - Power consumption measurement39:03 - PCB inspection talking head45:08 - Conclusion Forum:https://www.eevblog.com/forum/blog/eevblog-1723-alientek-dm40-multimeteroscilloscope-review/ Podcast:Download

Article Summaries:

  • EEVblog’s latest review (1723) covers the AlienTek DM40, a combined multimeter and oscilloscope. The video opens with an unboxing and a quick look at the device’s rotating, tilting bail. The reviewer notes a clean trend chart and a dual online/offline mode, but highlights several shortcomings: banana jacks are missing, megaohm interference affects high‑impedance measurements, and there is no AutoHold or internal recording. Calibration checks show minor temperature drift, and the LCD is bright but the colour scheme is inconsistent. The oscilloscope section praises the function generator and FFT, yet points out limited power‑consumption measurement. Overall, the DM40 offers solid basic functionality but falls short on advanced features and build‑quality details.

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