NooElec JYETech DSOShell Fully Assembled Portable Oscilloscope w/Enclosure & 10x BNC Probe Low Cost Digital Storage Oscilloscope with 2.4" TFT LCD. Model DSO150 (DSO 150); SKU 15001

No complaints for the money - As a 1CH scope, it is well worth it. Clearly not a TEK or HP, etc but sure operates nicely and is very easy to use. The multi-function buttons keep the simplicity of operation while providing for the functions of professional scopes. The only thing I'd like to see is a better zeroing of a reference (GND, etc) signal... WHERE the horizontal line ends up on the screen *ought* to be directly across the CENTER line in the grid. That is my only technological update request.

I had originally purchased a Hantek usb scope. I had software issues setting it up and long story short, it got returned. I needed something to check small ac dc signals and switching ect. This little scope works great. I set square wave calibration and it’s spot on. Very easy to use and change settings. Screen is easy to see. Only reason I didn’t give it 5 stars, is there is no internal battery compartment. I used a 9 vdc power supply from my breadboard and it worked well as well with 9 volt battery and adapter.

For what it is, the genuine $40-$50 JYETech DSO150 scope is a good buy. However...I would NOT buy this DSO150 oscilloscope from Nooelec. The reason is that they have not taken any care to ensure that different hardware versions of their products are not listed under the exact same amazon listing (ASIN: B079CPDVRG). This is wrong and should be flagged as an illegal listing.The JYE Tech website states Nooelec is a distributor. Additionally JYE Tech website says for the assembled version DS0150 the analog board should be 105-15006-00F with -122 software.I ordered and paid for new fully assembled DSO150.Received March 31, 2023 new fully assembled DSO150: 109-15000-00E2 main board, 109-15003-00E analog board, 109-15002-00A1 encoder board, -120 software.--Problem: Faulty DC power jack on main board. Note: this issue has been cited several times. Search "jack" in question/answers.So I requested exchange from amazon.Received April 2, 2023 Replacement assembled DSO150--Problem: ***NOT SAME PRODUCT--HAS OLD REV.D ERROR PRONE HARDWARE*** 109-15000-00E1 main board, 109-15003-00D analog board, 109-15002-00A1 encoder board, -110 software.Yes, like literally 2017 hardware. Nooelect stated "Amazon provides storage and fulfillment services and therefore we have no way to guarantee the revision of this or any other product we carry." And so why should anyone trust a Nooelect listing??? This hands-off, me-dont-care approach. And this has nothing to do with having two products under the same listing (ASIN: B079CPDVRG); moreover the rev.D has several serious hardware shortcomings that were fixed in rev.E. If the customer does not mind selecting and buying older hardware then they should have a clear purchasing option between the two versions.Amazon refunded the money because they cannot determine the hardware version of any replacements that are sent out from Nooelec. That is why this DSO150 oscilloscope should not be purchased from Nooelec. Perhaps either JYETech directly or accudiy.com as they currently accept phone calls (at least you can check to see what you will receive) and they also offer the latest analog board (109-15006-00A1).I will aggressively pursue the modification of this listing as it is false advertising to have two very different hardware versions under the same listing, especially when one hardware version has glaring design issues.Nooelect offered no attempt to rectify the issue nor did they show any moral pause for the fact that there are two different hardware version under same listing--one with KNOWN published and widely discussed problems. And since it is pre-assembled someone new that this was an old analog board. It is Nooelect's label on the box with same SKU numbers.

Watch this video for a very complete walk thru of the operation of this scope, ignore the fact that it says KYE instead of JYE. This will show the very intuitive layout of this item that you would never glean from the manual. https://www.youtube.com/watch?v=FqfQyD3AMYA . So, just the basics:You can't exceed 50Vpk to the input of the scope per supplied specs. There are eight divisions vertically displayable on the scope. That being said you will reach the maximum allowed input with the probe on X1 on the 10V/DIV scale at 5 of the 8 possible divisions displayable and 2.5 divisions of the eight possible displayed on the 20V/DIV scale. You CAN exceed this but also possibly blow up the scope! Switching to x10 will allow you to go up to 100V/DIV for up to 5 divisions and 200V/DIV up to 2.5 divisions . Also consider depending on what you are measuring whether you could have voltage spikes present that also could blow out the front end.This product requires a 9VDC source for the 2.1/5.5mm input jack. The provided specs report a typical 120mA draw where I found mine to be 90-95mA at all times. The scope will become erratic below 8VDC and can be permanently damaged if 10VDC is exceeded (which is implicitly pointed out on the JYETECH site). Therefore cheapo wall warts are to be considered as rolling the dice that they don't wander all over the place voltage-wise and exceed the 10VDC limit. Forums on this scope have pointed out that that artifacts from some of the very dirty switchers in these wall warts can show up on the most sensitive vertical settings. Therefore a battery source is recommended. I'm using two 3-D cell holders hooked in series wired to a 2.1/5.5mm plug (center POS). This provides ample capacity for a few hours.Some DIYer's have made enclosures with lithium rechargeable cells.The FW is the current 113-15001-120 revision as reported during power up. jyetech.com/firmware-dso-150-shell/ . The analog board is hardware rev 109-15003-00E and digital board 109-15000-00E2 as shown. There is a newer rev F analog board that is talked about in forums as of late that adds a 1K resistor in series with the input. There is no explanation provided but it seems obvious to protect shorting out the input signal if left attached to the scope input when going from DC to GND setting on input coupling selector to set up a ground reference on the display. Probably a "make before break" scenario when switching the slide switch from DC to GND. As this scope has been out since at least 2017 in various forms and revisions the fact that this has just been included would seem to point out a very low occurrence to this and/or a vendor change thingy on the part and simply removing the input signal or unplugging the probe when switching between these two positions will make this moot.I love this scope! I'm using it in conjunction with a similar sized audio generator for guitar amp repairs and have been in electronics for 55+ years. You can't go wrong with this and it's a steal at $30 dollars! Very happy with this seller with the quick shipment, genuine product and up to date FW!

I got this after watching youtube clips on setting up for maximum sound performance.At first it took me some time to find out work out how to use it but after youtube guides helped out, I figured out how to use it. I have a subwoofer controller with a clip light and with this oscilloscope I was able to make my adjustment suit my sound. Be mindful that this tool gives a good indication of the clipping rate but shouldn't be compared with more professional oscilloscopes.Two annoying issues is that it did not come with a power supply (£5 extra) and the correct lead (another £5 extra) to plug into the positive and negative points for my amp.Good for a cheap set up and intro the scopes.

Still learning. Instructions seem vague. Many YouTube videos to rely on.

I purchased this 'scope in order to more accurately set the azimuth alignment alignment on my turntable.Regardless of how I set the trigger the display jumped all over the place. Every time I adjusted either the voltage or time base the trigger would jump to a random level. The only useful thing that I managed to glean was that the turntable was running at the correct speed, the frequency display at least seemed to be accurate.This item was completely useless for the purpose for which I purchased it. I returned the item and was given a no quibble refund.

Works great. Behaved erratically when the 9V battery I used as a power source was low- that issue was easily diagnosed and repaired ... “user error”. Would have given 5 stars but I think a low battery warning would have been nice. ;)

Quick shipping. Everything works as specified.