ALIENTEK DM40 Digital Multimeter Oscilloscope Signal Generator — Features and Specifications
The ALIENTEK DM40 captures waveforms at a 50M sample rate, giving you the resolution to spot glitches and transient events that a standard multimeter would miss entirely. Its true RMS digital multimeter section measures AC/DC voltage, current, resistance, capacitance, frequency, and diode characteristics with lab-grade accuracy in a handheld compact design you can carry anywhere. The built-in signal generator outputs configurable test signals so you can stimulate circuits under test without carrying a separate function generator on your workbench or into the field. Automotive diagnostic ready inputs handle the voltage ranges and noise environments found in vehicle electronics, making the DM40 equally useful for ECU testing, sensor validation, and battery system checks. Every measurement mode is accessible through an intuitive interface, so you spend less time navigating menus and more time solving the problem in front of you.
AliExpress Shopper –
It’s very convenient, so i bought a second one.
In digivolt mode, the analog waveform display below the voltage readout is set to auto range, but i’d like to be able to fix the range manually.
Also, if you could add a dbv decibel (log) display so it can be used for measuring light intensity etc, i’d definitely buy nore.
AliExpress Shopper –
I ordered the DM 40 multimeter and I don’t regret it. Now there’s more space on the workbench, as this device has replaced other instruments on the shelf that were used for heavy repairs. I attached my multimeter to a phone holder and gained the mobility of the device. It would be nice for the manufacturer to expand the range of accessories.
AliExpress Shopper –
This is a very fine piece of equipment. I purchased this upon seeing a review by jazztech on youtube. It is very accurate and has auto ranging on multimeter settings as well as having the ability to set operating parameters. The scope and signal capabilities add to the versatility of this meter. This is the model c version which comes with silicone test leads which are very much better than the usual pvc finished leads most meters are supplied with. All the leads fit properly and have very low resistance. This instrument is probably the best that i have encountered at this level in over 40 years. It is very good value for a quality meter.
B***s –
At this price point £178 delivered and all taxes to the uk, this is a good meter. 60k counts, very fast continuity and diode modes. Oscilloscope and sig gen fine for hobbyist purposes. I got the dm40c model with the fancy extras. They are all good, the probes are very nice.
A***m –
High-quality device, good materials and well-thought-out design. Very informative and bright touchscreen display. Ordered the “C” version with high-quality probes and recommend it to everyone; they are very soft. Additionally ordered a hard case where all accessories fit. Recommend.