Mini Handheld Digital Oscilloscope, Support Persistence, PWM, 14 Type Measurement, 40MSa/s Sampling Rate, 18MHz Bandwidth, Signal Generator Frequency 500Khz, 2.4” LCD Display Suporrt 10X, 100X Probe








Key features
- •Faster Sampling Speed: Compared to the previous 138pro mini oscilloscope, this upgraded 154pro mini oscilloscope has a real-time sampling rate of 40MSa/s, a bandwidth of 18MHz, 500Khz signal generator frequency. Improve your work efficiency.
- •2 Trigger Modes & One-key AUTO: The DIY oscilloscope kit configured 2 trigger modes, auto/normal. Support waveform parameter setting,such as time base, amplitude, etc. And Support waveform one-key AUTO to automatically adapt to the screen, no need to adjust parameters,convenient and accurate measurement.
- •There are 14 measurement options available: Frequency, P-eak to P-eak, Duty cycle, Amplitude, RMS, Average, Period, +Pulse width, -Pulse width, Max, Min,Top, Base.
- •Built-in High Voltage Protection: The handheld oscilloscope built-in high voltage protection module can withstand up to ±400V AC/DC voltage signal. And built-in 1000m-Ah high-quality battery, can be used continuously for about 6 hours after full charge.
- •Wide Applications: Ideal for the maintenance industry and the R&D education industry. It's very valuable for find AC bleeds in signaling wires, examin clock signals, PWM, checked for noise, and used it to debug SPI. And for a hobbyist, learn-to-fix electronic stuffs like phones, laptops, switching PS and such, it is a good choice.
- •🎁What You Will Get: 1 *Digital Oscilloscope , 1 * High Voltage Probe , 1 * Typc-C cable , 1* alligator clips , 1* Manual, and Leolov provides a lifetime service and technical support. Please feel free to contaut us, you will get a reply in 24 hours.
BrandLeolov
CategoryOscilloscopes
Mini Handheld Digital Oscilloscope, Support Persistence, PWM, 14 Type Measurement, 40MSa/s Sampling Rate, 18MHz Bandwidth, Signal Generator Frequency 500Khz, 2.4” LCD Display Suporrt 10X, 100X Probe
List Price: $88.54$79.69DEALYou Save: $8.85 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.3
out of 5
Based on 10 reviews
5★
40%
4★
60%
3★
0%
2★
0%
1★
0%
Very useful handheld oscilloscope
CarlS✓ Verified Purchase•October 26, 2023
This battery powered (rechargeable) digital oscilloscope is very handy for diagnosing the signals in a DIY electronic project. You do have to be careful handling it when in use as it is not in a case. The circuit boards that it is made up from are fastened together to form the top and bottom but the internal circuitry is exposed on the edges. This is especially important if probing high / line voltage signals.
While the unit has a USB-C connector this is for rechargine the internal battery only. There are no supported data signals so you cannot interface it to a PC for a larger display (unfortunate).
While the unit has a USB-C connector this is for rechargine the internal battery only. There are no supported data signals so you cannot interface it to a PC for a larger display (unfortunate).
It is very small and with a small screen
Russell K McComb✓ Verified Purchase•October 24, 2023
It is very small, but works as shown up to 18Mhz. Above 18Mhz the display does show but it is wrong due to the bandwidth limits. This would be nice if an interface on USB with a computer were able to function then this would be a nice feature. It is very portable due to the size of this scope. The screen looks very nice, even though it is small.
Useful little tool
Mike Sims✓ Verified Purchase•October 20, 2023
Need to have a case or a 3d file available to print one.
Great little oscilloscope. Max PkPk voltage of the signal generator is 2.58V
Andrew✓ Verified Purchase•September 13, 2023
Pretty nice oscilloscope. Been finding lots of waveforms lately with it in trying to diagnose/find electrical problems, and it's been instrumental in determining the issue at hand (In a way that would've been impossible with a voltmeter). The original listing I purchased from, said it had a 5V signal generator aboard and the sidebar images show pictures of generated waveforms of around 5V at the time of this writing this review. However, the most I can get is 2.58V PkPk waveforms, and there is no way to adjust the output voltage. Other than that, it's very capable at being an effective oscilloscope, with easy adjustment of the voltage sensitivity and the time interval using the arrow buttons.
Great device with a glaring issue
Gene Fedorov✓ Verified Purchase•September 10, 2023
I was kind of hesitant to leave a review for this product. On one hand it is a great, compact, well-programmed and feature-rich device which I use very often in my home workshop where I dabble in electronics and small-scale manufacturing. I noticed I use it almost as often as my calipers, which is saying a lot in my case.
On the other hand, my workshop is not a clean room -- the airborne particles are sometimes present including, most importantly, metal shavings from the mill and lathe. Every time I was using the ocsilloscope in such environment I was afraid of short circuiting it (or worse, something else with it) because it has an open frame and all electronics lies there completely unprotected. Finally I decided to make an enclosure from HDPE, which you can see on the photo. Since HDPE is a cheap and relatively soft material, I laser-etched the surface to make it more scratch resistant. The inserts for AC/DC switch, power button and USB port were separately milled from some plastic scraps I had lying around in my workshop. Another small insert in the USB port was made from transparent acrylic glass to allow LED light to pass through.
Ever since I made these modifications, the usefulness of the device increased substantially. It is now dust-proof, and I'm not afraid of using it in the vicinity of the mill, or putting it in my pocket together with keys, and so on. If it came like this originally, I would praise it and would probably buy at least one more unit just in case, because it is so useful and inexpensive. Otherwise it's four stars. Manufacturer, please take note.
One other point of criticism: being so compact I don't think this oscilloscope needs a full-size BNC connector for the probe. Something smaller would work just as well while preserving the pocketability of the device.
On the other hand, my workshop is not a clean room -- the airborne particles are sometimes present including, most importantly, metal shavings from the mill and lathe. Every time I was using the ocsilloscope in such environment I was afraid of short circuiting it (or worse, something else with it) because it has an open frame and all electronics lies there completely unprotected. Finally I decided to make an enclosure from HDPE, which you can see on the photo. Since HDPE is a cheap and relatively soft material, I laser-etched the surface to make it more scratch resistant. The inserts for AC/DC switch, power button and USB port were separately milled from some plastic scraps I had lying around in my workshop. Another small insert in the USB port was made from transparent acrylic glass to allow LED light to pass through.
Ever since I made these modifications, the usefulness of the device increased substantially. It is now dust-proof, and I'm not afraid of using it in the vicinity of the mill, or putting it in my pocket together with keys, and so on. If it came like this originally, I would praise it and would probably buy at least one more unit just in case, because it is so useful and inexpensive. Otherwise it's four stars. Manufacturer, please take note.
One other point of criticism: being so compact I don't think this oscilloscope needs a full-size BNC connector for the probe. Something smaller would work just as well while preserving the pocketability of the device.
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