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Siglent Technologies SDS1202X-E 200 mhz Digital Oscilloscope 2 Channels, Grey

4.7 out of 5 stars 1,158 ratings
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Amazon's Choice in Lab Oscilloscopes by Siglent Technologies

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  • Country of origin : China
  • Real-time sampling rate up to 1 gsa/use
  • IRecord length up to 14 Mpts
  • Standard serial bus triggering and decode, supports iic, spi, uart, Rs232, can, and lin
Product Specifications
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 10 x 15 x 17 inches; 5.51 Pounds
  • Item model number ‏ : ‎ SDS1202X-E
  • Date First Available ‏ : ‎ April 19, 2017
  • Manufacturer ‏ : ‎ Siglent Technologies
  • ASIN ‏ : ‎ B06XZML6RD
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.7 out of 5 stars 1,158 ratings

Product Description

200Mhz, 1Gsa/s, The SDS1202X-E Series employs a new generation of Spo technology that provides excellent signal fidelity and performance. The system noise is also lower than similar products in the industry. It has a minimum vertical input range of 500 UV/Div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400, 000 frames/sec (sequence mode). it also employs a 256-level intensity Grading display function and a color temperature display mode not found in other models in this Class. Siglent’s new oscilloscopes offering supports multiple powerful triggering modes including serial bus triggering. Decoding is standard configuration including IIC, SPI, UART, can, LIN. History waveform recording and sequential triggering enable extended waveform recording and analysis. Another powerful addition is the new 1M points FFT math function that gives the sds1000x-e very high frequency resolution when observing signal Spectra. The new design also includes a hardware co-processor that delivers measurements quickly and accurately. The features and high performance of the sds1000x-e Series cannot be matched else anywhere at this price.


From the manufacturer

1 2 3
SDS1104X-E SDS1202X-E SDS1204X-E
Bandwidth 100 MHz 200 MHz 200 MHz
Channels 4 2+EXT 4
Real Time Sampling Rate 1 GSa/s 1 GSa/s 1 GSa/s
256 -Level Intensity Grading and Color Temperature Display
Memory Depth (Max.) 7 Mpts/CH (not interleave mode); 14 Mpts/CH (interleave mode) 7 Mpts/CH (not interleave mode); 14 Mpts/CH (interleave mode) 7 Mpts/CH (not interleave mode); 14 Mpts/CH (interleave mode)
Trigger Type Edge, Slope, Pulse Width, Window, Runt, Interval, Dropout, Pattern, Video Edge, Slope, Pulse Width, Window, Runt, Interval, Dropout, Pattern, Video Edge, Slope, Pulse Width, Window, Runt, Interval, Dropout, Pattern, Video
Capture Rate 100,000 wfm/s (normal mode), 400,000 wfm/s (sequence mode) 100,000 wfm/s (normal mode), 400,000 wfm/s (sequence mode) 100,000 wfm/s (normal mode), 400,000 wfm/s (sequence mode)
USB AWG Module (Four Channel Series Only, Option) One channel, 25 MHz, sample rate of 125 MHz, wave length of 16 kpts, isolated output (SAG1021I only) Not Support One channel, 25 MHz, sample rate of 125 MHz, wave length of 16 kpts, isolated output (SAG1021I only)
16 Digital Channels (Four Channel Series Only, Option) Maximum waveform capture rate up to 1 GSa/s, Record length up to 14 Mpts/CH Not Support Maximum waveform capture rate up to 1 GSa/s, Record length up to 14 Mpts/CH

What's in the box

  • SDS1202X-E, Quick Start, Two 200Mhz Passive probes, One USB Cable
  • Looking for specific info?

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    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    1,158 global ratings

    Top reviews from the United States

    Reviewed in the United States 🇺🇸 on December 1, 2022
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    Reviewed in the United States 🇺🇸 on November 2, 2022
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    Reviewed in the United States 🇺🇸 on August 3, 2021
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    Reviewed in the United States 🇺🇸 on May 11, 2021
    Style: OscilloscopeVerified Purchase
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    2.0 out of 5 stars Deceptive and Inaccurate.
    By Fair Review on May 10, 2021
    In my opinion, this is a typical representative of Chinese technology. It looks legitimate on a paper, but in reality is inferior in design, performance; and with predictably questionable build quality. It resembles early pre-production concept of product, which has long way to go before becoming market worthy; or even worse – exaggerated performance to bolster sales, and in combination with deliberate measures to make sure that consumer will not get more than he paid for in their opinion…

    As the majority of value priced oscilloscopes, this oscilloscope automatically reduces its sampling rate (and thus accuracy) along with increase of the time scale, instead of giving user discretion over sampling rate settings. In User Manual the manufacturer attempts to lecture with their interpretation of sampling theory as probably a justification of this handicap. And of course, specification of this important limitation is not present in (up to date of this review) advertised Product Data Sheet, neither in any other form and location of specifications.

    Having no “Eject” functionality programmed into tool’s firmware, it always causes USB drive corruption if drive is “hot” attached and then removed. Initially mistaking this as a defect of one particular unit, and exchanging it with another one (thanks to customer oriented Amazon policy), I was greatly disappointed to learn that new one is acting in the same way. And this model is in production for no less than 3 years. Manufacturer had plenty of time to fix this error. And in a first place, how it managed to remain undetected throughout development, testing, and production quality control…

    It was impossible to bring signal to reasonable “zero voltage” level (Pic-1a,b) in the 500µV/Div range. And where voltage offset inaccuracy was ranging, and even exceeding 100% of scale division! This offset was floating, and seemingly changing over time. Self calibration did not solve this issue, and in the case of my first oscilloscope, it was constantly degrading over time. This inaccuracy only becomes insignificant at 50mV/Div, and in reality makes this setting as the lowest usable voltage range with acceptable visual accuracy (down to 3%-5%). And which actually, is really bad, even for a bargain priced unit.

    I was forced to return my replacement unit due to out of the box USB interface malfunction, and inability to make PC connection; as it was determined by technical support.

    On both scopes the probes’ voltage offset control function was acting identically with vertical signal position, making it completely useless and raising even more concerns about tool’s accuracy.

    Other bad surprises were waiting in a form of software notifications, informing that certain functions which were expected to work, are not available under certain, and apparently most useful settings. And these limitations were not disclosed in specification. Two most notable functions are listed below.

    Officially, this is a storage oscilloscope with loudly advertised deep sampling memory. But in reality its storage functionality is almost useless. The scope does not record waveforms into its internal memory. The external (corruptible though…) USB memory shall be used, but the waveforms cannot be played back in the oscilloscope… The only “History” waveform data can be played back in the oscilloscope. History recording is only available in “Normal” acquisition mode, and is not available in “Average” acquisition setting (It is also unavailable every other Wednesday of each odd week of the month… Please forgive me this sarcastic joke). Important to mention, that History is rather automatic loop data recorder without user ability to control what and when to record. It neither allows saving, or export recorded waveforms.

    Widely advertised as a competitive advantage, color waveform grading is not available in Average data acquisition mode; and where it would have been the most and truly useful. In Normal acquisition mode the brightness differentiation of overlapping waveforms is clearly visible without any colors…

    As observed on both oscilloscopes, the 20MHz bandwidth limiting of analog input, has seemingly only worked once. This evidenced by changing noise level of open probe inputs, and where after initial activation it stayed “On” regardless of software control toggle. Without appropriate test equipment I could not say that with greater confidence. However, if aforementioned is true, the 200MHz oscilloscope has permanently turned into 20MHz underperformer…

    Both tools detected & displayed unexpected oscillation at 500µV/Div, when experimenting with Ground Coupling alike condition; where the probes were connected (but probes’ grounds were not connected to anything) to oscilloscope ground as shown in Pic-2. The Peak to Peak amplitude of mysterious oscillations was observed to be in the range of 2-3mV. When this may not be detectable in other circumstances, this correlates with earlier discussed tool accuracy concerns, and suggests deficiency of design; and looks like a pathetic “clock leakage”.

    Unlike other more developed oscilloscopes with “floating” to “grounded” probe switching option, the ground terminals of this tool’s channels are permanently grounded. Caution and concentration of the mine sweeper is required while working on grounded equipment. Oscilloscope’s manual explicitly instructs using 3-wire power only, thereby suggesting that no isolation transformer is allowed.

    There were other concerns with quirks in controls settings & operations, intermittent software snags with activating & deactivating certain functions; practically useless, and gimmicky PC software.

    Does this tool have any positive properties – yes it does, but quality issues, shortages in basic and explicitly promised functionality dominate, and result in overall low impression, and consequentially in no come back.
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    Reviewed in the United States 🇺🇸 on October 27, 2022
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    Reviewed in the United States 🇺🇸 on October 28, 2022
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    Top reviews from other countries

    Old Timer
    5.0 out of 5 stars Very Impressive
    Reviewed in the United Kingdom 🇬🇧 on May 3, 2018
    Style: OscilloscopeVerified Purchase
    Customer image
    5.0 out of 5 stars Very Impressive
    Reviewed in the United Kingdom 🇬🇧 on May 3, 2018
    Anyone reading oscilloscope reviews has most likely done a lot of research, watched a pile of YouTube videos and so forth, so I won't recite the features of the Siglent SDS1202X-E because I think you already know all that. Instead I give my initial experiences of the machine.

    The Compensation Issue

    Early production of the SDS1202X-E with serial numbers in the format xxxxxBAxxxxxxx had an issue with the input circuitry that resulted in the probe compensation being affected by changing the volts per division setting. There has been a lot of noise about this in various forums, and it is much reported in the amazondotcom reviews of this model. Knowing about the matter, and also knowing it had been rectified in production with xxxxxBBxxxxxxx serials, before ordering I asked the supplier Ovio-Instruments if I would be supplied with a BA or BB serial, and they promptly replied that none of their stock had BA serials. Good enough, I placed my order.

    Arrival

    The scope arrived in the manufacturer's box, mercifully and unusually not enclosed in one of Amazon's huge cartons the approximate size of Belgium. Immediately I checked the serial, and it was one of the BB series. Excellent, big sigh of relief.

    In The Box

    Well protected in polystyrene packing pieces, the scope was in perfect condition. There was also a 'Certificate of Calibration' dated Jan-06-2018, a Quick Start Guide, two probes, and an EU to UK mains plug adaptor. I think it a very poor show not to supply electricals with a UK power lead, but I did know that was going to be the case.

    The probes are more than acceptable to me, I think they're absolutely fine. Each is supplied with a compensation adjusting tool, as well as identifying rings and point tips that can be substituted for the fitted grabber tips. Screens are easily dumped to a USB stick by pressing the PRINT button, and my attached photo #1 shows the Utility screen used for compensation adjustment.

    The out-of-the box software was version 5.1.3.17 and I immediately upgraded it to 5.1.3.17R1 which was the latest version on the Siglent website. The procedure is a piece of cake, just a matter of copying a downloaded file to a USB stick and poking said stick in the USB socket on the front of the scope. Note that the scope doesn't recognise NT formatted USB sticks, only FAT32.

    Fan Noise

    Being a home user, a hobbyist, the fan noise was something I had anticipated might be an issue. I needn't have worried because although the fan is audible it doesn't trouble me and I doubt it would much bother anyone else. Importantly, it's constantly on and always at the same speed; that's much less annoying than something that stops/starts growls/whines. Besides, as far as I know there is no option to buy a silent scope of any power because muscular electronics run hot and need cooling.

    The Learning Curve

    This is the first scope I've owned and the first digital storage scope I've even used, although I used analogue scopes when I worked in consumer electronics long ago. Anyone else remember peering at the PAL colour burst on the back porch of video signals? So learning this scope is going to take time, as would be expected. The user manual (a download from Siglent) covers the entire SDS1000X-E series so has some content not relevant to this model, but is really quite good even for someone like me who usually scoffs at manuals.

    Help Screens

    Holding down any button brings up an on-screen summary of its function, this is useful in becoming familiar with what is a complex instrument. Unfortunately the screen print function does not work while a help screen is displayed so I cannot show an example here.

    Serial Decoding

    Having serial decoding as standard is a much-touted feature of the SDS1202X-E. Due to my weak knowledge of DSOs and the detail of serial comms I found it difficult to set up, and neither the manual nor various internet videos were of much help. But I got there and now I don't know quite why I struggled. My settings for SPI are now stored as the Decode 1 options, another set of options can be stored under Decode 2 and that set I will use for I2C. If it helps anyone, for SPI I have CH1 as Signal with Threshold 750mV, CS Type set to CLK Timeout 80.0us, CLK (CH2) Threshold 1.2V, Edge Select Falling. Those settings work fine with SPI from both 3.3V and 5V chips. My photo #2 shows the decoded MOSI from an Arduino Nano; note that the blue row at bottom will show byte values if time per division is reduced sufficiently, but then the list table at top is not fully populated.

    Ethernet Connectivity

    The Siglent SDS1202X-E has an ethernet port but does not have a web interface. To communicate with it via TCP/IP
    you first need to enter the scope's Utility menu, find the I/O soft key, and enable DCHP so your router can assign an IP address, see my photo #3. Your computer must have National Instruments Virtual Instrument Software Architecture (NI VISA) installed, this is a free self-extracting and installing 700MB download from the National Instruments site. With NI Visa installed you can run EasyscopeX, a free download from Siglent that communicates with the scope using the VXI-11 instrument protocol facilitated by NI Visa. EasyscopeX recognises my scope as an SDS1202X-E but the interface shown in my photo #4 is generic for the SD1000X series, showing things such as Wave Generator and Digital Input that my humble scope does not have. The virtual interface seems to offer almost total control of the scope, but over ethernet is rather slow, certainly waveforms are not updated in anything like real time.

    It may be worth pointing out that once NI Visa is installed it's not necessary to fire it up for EasyscopeX to run properly.

    USB Connectivity

    It is possible to use NI Visa/EasyscopeX via the USB B (think Arduino Uno or ancient printer) socket on the back of the scope. In that event it is necessary to select USBTMC in the I/O layer of the scope's Utility menu and to similarly select USBTMC in the Add Device dialogue of EasyscopeX. Definitely USB is faster than Ethernet, but it's not clear to me that remote connectivity offers any benefit to the home user.

    Measurement

    As a DSO novice I can fully appreciate the measurement facilities of the SDS1202X-E, although I realise that every DSO offers similar. My photo #5 shows my scope screen when displaying a PWM waveform output by a NodeMCU which is actually the brightness control for a TFT screen. Such informative detail at the press of a button, absolutely marvellous.

    Conclusion

    After five days with the Siglent SDS1202X-E I can say I'm very impressed, and I haven't yet explored features such as Colour Gradient, Display Persistence, FFT etc. With its obvious build quality, good specification, and slick software - you're never waiting for the interface to catch up - it easily earns a five star rating.
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    Expire
    1.0 out of 5 stars Very concerned at the Serial Number Issue
    Reviewed in the United Kingdom 🇬🇧 on May 20, 2018
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    Sump
    5.0 out of 5 stars Ideales Gerät für Bastler
    Reviewed in Germany 🇩🇪 on November 17, 2018
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    Ursine
    5.0 out of 5 stars Great features and price
    Reviewed in the United Kingdom 🇬🇧 on March 11, 2019
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    Riccardo
    5.0 out of 5 stars Siglent SDS 1202X
    Reviewed in Italy 🇮🇹 on July 31, 2018
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