HDS242S Oscilloscope, 2 in 1 Dual Channel 40MHz Bandwidth Handheld Oscilloscope Multiumeter with Waveform Generator for Automatic Measurements, Electronic Measurement 3.5 inch LCD
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Availability:
15 left in stock
Arrives
Friday, Aug 7
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Style: HDS242S 2+1CH/40MHz
Features
- 3-in-1 Oscilloscope, Multimeter, and Signal Generator Combines a 40MHz 2-channel digital oscilloscope, a 20,000-count True RMS multimeter, and a built-in signal generator in one compact handheld device for signal analysis, electrical testing, and circuit measurement
- 40MHz Dual-Channel Oscilloscope for Diagnostics Up to 250MSa/s sampling rate, 10,000 wfms/s refresh rate, and 8K record length support signal observation, dual-channel comparison, and routine troubleshooting
- Built-in Waveform Generator for Circuit Testing and Signal Simulation Provides sine wave output up to 25MHz, along with square, ramp, pulse, and arbitrary waveforms for circuit testing and waveform simulation in one handheld tool
- True RMS Multimeter for AC/DC Electrical Testing Measures AC/DC voltage, AC/DC current, resistance, capacitance, diode, and continuity for electronics repair, automotive diagnostics, and bench testing
- Portable Design, Data Save, and USB Type-C Connectivity Built with a 3.5-inch color LCD and USB Type-C port in a compact handheld design for bench use, mobile troubleshooting, and on-site maintenance. Supports saving settings, reference waveforms, screen images, and waveform files, with PC software support
Description
Make sure your product version is the latest version,（Confirm on the official website, attached to the front page of the manual）if not, download as prompted. Guaranteed quality, lightweight and compact size with big screen, convenient and portable for your work anytime and anywhere. First, it can use in school experiment course; Second, the oscilloscope can be practical in automotive diagnostic job; Third, troubleshooting, delicate repairs, power Detection and so on.
Product Dimensions: 7.8 x 1.5 x 3.78 inches
Item Weight: 1.31 pounds
Manufacturer: OWON
Item model number: HDS242S
Batteries: 2 AAA batteries required. (included)
Date First Available: August 6, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Aug 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: HDS242S 2+1CH/40MHz
I took a chance with the 40mhz version and I am extremely happy with this unit. It's super portable, accurate, and easy to use. Perfect for field use. Doesn't have as many features of bench tops, but that's not it's point. Pitted against my certified calibrated Fluke 789 (voltage accuracy test), this thing is on the mark accurate. As stated by others, when in auto range, it's slow to settle, but when locked in a range, it's nice and snappy. This will perform just fine for troubleshooting in the field, mainly for discovering intermittent DC voltage drops/issues with industrial equipment and sensors (something DMMs can't do). Although the DMM test leads it comes with are worthless, those are easily replaced with better built leads. The probes are good, no picture but it performed well when connected to my signal generator with a 1-40Mhz sweep, begins to struggle a bit above 35Mhz, but that's beyond the scope of my needs for it in the field. Although it's ability to survive an industrial setting is yet to be determined, I'll take my chances and just treat it with care. For the price you can't beat it.
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Reviewed in the United States on February 15, 2022 by Noah
Style: HDS242S 2+1CH/40MHz
Accuracy is as good as my real oscilloscopes and the ease of use of this makes this a go to for me. I originally ordered this only because it is not tied to any grounds, but now use it as my favorite desktop scope. I am a longtime EE and am using this happily with 5 kHz - 20 MHz signals and am also very happy with the function generator. Highly recommended based on price/performance.
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Reviewed in the United States on January 6, 2023 by BP Review
Style: HDS242S 2+1CH/40MHz
Just got the unit and unboxed it, and fired it up. tl;dr at the end. This is my review of the particular 'kit' I purchased that came with some extra probes. What I got was: a) The HDS242S scope - 2 channels 40MHz + signal generator b) 1x/10x probe with adjustment screw at the solid BNC connector + bag of adjustment tool, tips, color rings c) 1x/10x probe with adjustment screw at the probe end w/ slim plastic BNC connector + bag of adjustment tool, tips, color rings d) two metal BNC to alligator clip leads e) a red/black pair of configurable leads where you screw on your choice of item to the two ends of the leads. Included ends: needle screw on probe (x2), needle screw on bare ends (x2), bare banana post screw on (x4), bare screw on fork spade connector (x2), red and black covered alligator clips (x2 each color) - so you can built some custom ended cables for use with the multi-meter function. f) USB A to USB C charge cable g) USB A DC power supply block to plug into mains h) pair of multimeter probes - vinyl covered I think. i) BNC to BNC cable j) manuals and soft sided zip case Good: 1) The display is nice and bright - have not tested it outside in the sunlight yet.. that is tbd 2) Boot up and shut down time are nice and quick. 3) The compensation of the probes was easy and they were nearly perfect, if not already dead on. Annoyances: 4) The adjustment of scales and triggering source/setting are a bit odd, given its all done over push buttons that server multiple purposes - but once you use it a few times, I think the process will be much easier. 5) There is way too much stuff to fit in the box. With just 2 oscope probes and the 2 multimeter leads - the soft box is almost full. Keep in the webbing front the adjustment screwdriver and the BNC-BNC cable for use with the function generator, and the USB-A to USB-C charging cable, and there is little room other 4 leads nor the mains-usbC charging adapter. So if all of the stuff (a-j) much of it just wont fit in the storage box... so it’s really too much, as you have to store the other bits somewhere. As a result just storing the the leads and scope in the soft side box on the bench left a scratch in the screen where a metal part of one of the many things in the box rubbed against the screen (see photo). 6) The manuals won't fit in to box - ok, give you have to store all the extra junk somewhere its not a huge deal, but would be nice, if the manual was just slighly smaller or better the box was slighly larger, so the manuals would fit in the bottom (and maybe even all the extra stuff). 7) the stand folds out with a hard crack sound on the plastic - and it is felt through the unit. It “feels” like the thing could break. However this is only the sharp plastic edge that is the lock pivot point. And if you own and close the stand a few dozen times, then that sharp edge gets worn rounder and the had “crack” goes away and becomes a looser smoother click and works well (see photo of the area). So this can be fixed. Problems: 8) The two probes are different - the one that comes with the scope vs the added one my seller packaged in to ensure there are two scope probes in the kit (as its a 2 channel scope). Problem is the 2nd probe's BNC end is cheap and too tight - pulling it off of the scope takes way more force than I'd expect - you worry if you are going to wear out or break something. It will likely wear in, but I'd rather have had less of the extra odd stuff ( like skip the configurable leads - item e) and instead just gotten packed in another like higher quality probe. 9) Because the probes are different, their pointy probe ends are actually slightly differently sized - such that the yellow special tips to center or to shield the tip (if the hook cover is removed) - do NOT fit on the other probe. You cannot get the slightly smaller diameter covers on the slightly larger probe, and the slightly larger cover will not hold on the slightly smaller probe tip. That is really sad - that there isn't enough production tolerance control in the factories that make these to be ensure these common parts are all make to the same sizes. 10) questionable component quality control and lack of web support - unable to even check what the current firmware version is, which is a red flag that any software issues in the unit won’t be fixed and updated ( like the annoying lag in auto ranging locking in on a value , while changing values are displayed so your never sure if the value shown is accurate). Additionally one of the clips with the unit came badly assembled / bent (see photo). tl;dr; In trying to differentiate from the many sellers of this owon scope/meter, they bundled in too much in cheap probes. Just having bundled in one additional full quality scope probe might have been enough. And Owon made the padded box too small for what it effectively needs to store. With the damaged new lead tip , midsized probes and their accessories , too small box and lack of suooort in returning it after a 2 days - hoping Owon will update the units with a new revision that fixes the issues.
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Reviewed in the United States on May 24, 2025 by Thomas S.
Style: HDS242S 2+1CH/40MHz
Love this little o-scope! I purchased the 40MHz version with the signal generator several months ago. I've used it extensively for prototyping DIY synthesizer builds. Indispensable and effective for viewing audio frequency waveforms and their voltage levels as I'm far from the 40MHz spec. I use the signal generator to produce known waveforms and view them post op amp circuits. Great having additional multimeter and other functions built-in and to be able to rapidly switch between them. Very intuitive, easy to use and small footprint on my workbench. Excellent value overall compared to almost any other o-scope option, as I couldn't justify $400-$1000 for a full fledged.
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Reviewed in the United States on January 9, 2023 by KR
Style: HDS242S 2+1CH/40MHz
Era mas de lo que esperaba
Reviewed in the United States on May 22, 2026 by La flaca
Style: HDS242S 2+1CH/40MHz
This unit is great. I read reviews on this and the hantek. I went with this for the bigger screen. The specs are better to. Its very fast when you turn it on. The display is very easy to read and the controls are intuitive. This is now my go to meter for most things around the house and camping. All and all, for the price, you get a very practical and useful oscilloscope and DMM.
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Reviewed in the United States on October 14, 2021 by Willy C
Style: HDS242S 2+1CH/40MHz
Changing functions is just too cumbersome. Very non-intuitive. This scope could have been engineered to be much easier to use. Button presses and button combinations kept me referring back to the manual each time I used it.
Reviewed in the United States on April 4, 2026 by JG
Style: HDS242S 2+1CH/40MHz
Once you figure out the layout and function of the buttons, it gets much easier to use. I had the same problem with my Fluke Scopemeter 97. I do love the size of this little Scope-Meter. The jury is still out on its temperature reading ability. I am testing this as I write this review. It could be the internal thermistor may have to have a longer stabilizing period than I am used to, thus giving the 6 to 8 degree difference in temperature, than my temperature probe that I am using for comparison. My probe is spot on. The only other problem that I have is that the Scope does not have a waveform invert mode. This is needed when viewing Automotive secondary wave form patterns and using inductive probes. This feature needs to be included with the next design. This Scope-meter has a very low price compared to other tools of this type. All In all, it is a good tool with clear, vivid Scope and Meter display screen presentations. I do love the fact that it is Lithium powered and the batteries are very easy to find and purchase. I have used the Scope mode for Hours without the batteries running low. I do think I would buy this Owon HDS242S tool again.
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Reviewed in the United States on March 8, 2022 by Jay Hibben