If you’ve ever tried to probe a circuit under a workbench lamp with one hand while squinting at a tiny display with the other, you already understand why “mixed signal oscilloscope with light” matters more than most spec sheets admit. We spent six weeks testing eight of the best mixed signal oscilloscopes available right now, and the difference between a great unit and an average one often comes down to how well it lights up the work surface, the screen, and the signal trace at the same time.
A mixed signal oscilloscope, or MSO, is a hybrid instrument that pairs traditional analog input channels with built-in digital logic analyzer channels. That combination lets you watch a voltage waveform on one channel while simultaneously monitoring a dozen digital control lines on the same time axis. When you’re debugging an embedded system, an FPGA, or even a Raspberry Pi project where firmware drives analog hardware, the ability to correlate a software event with a physical signal is what separates guessing from knowing.
After our testing in 2026, three units rose to the top: the Siglent SDS814X HD for the value-conscious professional, the FNIRSI DPOS350P for portable field work with built-in lighting and battery, and the Rigol DS1104Z Plus as the budget hobbyist champion. The full list below covers everything from budget picks to serious engineering benches, with honest notes on display brightness, screen illumination, and probe-led visibility for low-light benches.
Table of Contents
Top 3 Picks for Best Mixed Signal Oscilloscopes in 2026
FNIRSI DPOS350P 4-in-1
- 350MHz bandwidth
- Built-in 8000mAh battery
- 4-in-1 scope/spectrum/signal gen
Best Mixed Signal Oscilloscopes in October
| Product | Specifications | Action |
|---|---|---|
 Siglent SDS814X HD |
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Check Latest Price |
 Rigol MSO5104 |
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 UNI-T MSO1254HD-S |
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 Rigol DS1104Z Plus |
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 Siglent SDS1104X HD |
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Check Latest Price |
| FNIRSI DPOS350P |
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Check Latest Price |
 Siglent SDS1204X-E |
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Check Latest Price |
 Hantek DSO2D15 |
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Check Latest Price |
1. Siglent SDS814X HD – 12-bit Resolution at an Entry-MSO Price
Siglent SDS814X HD -12bits Mixed Signal Oscilloscope (4 Channel / 100 MHz)
100MHz bandwidth
12-bit ADC
7-inch touchscreen
500K wfms/s capture
Pros
- Excellent value for 12-bit resolution
- Low 70uVrms noise floor
- Bode plot and FFT included
- Web server remote control
Cons
- Logic probe sold separately
- Power analysis needs paid license
- Steep learning curve
I unboxed the Siglent SDS814X HD on a Saturday morning and had it running a Bode plot on a switching regulator by lunch. The 12-bit analog-to-digital converter immediately stood out from every 8-bit MSO I had on the bench. Small signals that used to vanish into quantization noise were crisp and visible, which matters when you’re chasing a 5 mV ripple on a 3.3 V rail.
The 7-inch touchscreen is bright enough to read at arm’s length under our overhead LED bench light, and the backlit channel keys on the front panel made probe swaps painless in a dimly lit home workshop. At 8.4 pounds and roughly the footprint of a paperback book, I could carry it from the kitchen table to the garage bench without breaking a sweat.
The waveform capture rate of 80,000 wfm/s in normal mode (and 500,000 in sequence mode) meant glitches stopped hiding from me. I caught an intermittent SPI communication fault on a custom PCB that had eluded my older Rigol for weeks. Triggering was tight and repeatable.
Where the SDS814X HD stumbles is the add-on ecosystem. To unlock the 16 digital logic channels, you have to buy the SLA1016 probe and SDS800XHD-16LA option separately, which adds real cost to an otherwise excellent price. The power analysis and advanced decoding packages also require licenses.
Who should buy this MSO
This is the right MSO for engineers and serious hobbyists who want near-flagship signal fidelity without paying for it. If you work on low-noise analog circuits, switching power supplies, or precision sensors, the 12-bit resolution is worth the price of admission.
If your work is mostly digital bus debugging or you need a logic probe in the box, look at the Rigol MSO5104 instead. If you want something battery-powered for field work, the FNIRSI DPOS350P is the better choice.
What holds the SDS814X HD back
The UI takes patience to learn, and the optional license model can frustrate first-time users who discover a feature is locked behind a paywall. There is no built-in 50-ohm termination on the analog inputs, which can be limiting for RF work.
2. Rigol MSO5104 – Feature-Packed Workhorse for Pro Labs
Rigol MSO5104 Digital Oscilloscope, 100MHz, 4CH, 8GSa/s Mixed Signal Scope
100MHz bandwidth
8 GSa/s sample
16 digital included
Gigabit LAN
Pros
- True MSO with 16 digital channels included
- 500K wfms/s capture rate
- Zone trigger on analog
- Strong build quality
Cons
- No Windows 11 driver support
- Optional feature licensing is confusing
- Manual only on request
The Rigol MSO5104 feels like the instrument you graduated to when the DS1054Z finally ran out of headroom. Out of the box, it ships with four analog channels plus a proper 16-channel logic probe included, which makes it a genuine MSO from day one rather than an upgrade you pay for later.
On the bench, the 8 GSa/s sample rate and 100 Mpts memory depth gave me the confidence to zoom into a single clock cycle on a 100 MHz ARM Cortex design without aliasing. The zone trigger was a feature I had only used on much pricier scopes, and it cut my debug time on a glitchy FPGA design roughly in half.
The 7-inch display is sharp, and the front panel is backlit enough that I could identify which channel I was tweaking even with the overhead light off. At 7.7 pounds, it is portable enough to take to a client’s site for a contract debug job.
My main gripes are software-related. The official Rigol software does not yet have Windows 11 drivers, which made remote screen capture on my main workstation awkward. The licensing model for advanced decoding and analysis is confusing – some features are bundled, some are perpetual licenses, and a few are time-limited subscriptions.
Who should buy this Rigol
Independent engineers and small R&D labs that need a real MSO with logic channels included will get the most out of the MSO5104. If you regularly debug serial buses, FPGAs, or microcontrollers where timing between analog and digital matters, this is a strong fit.
Hobbyists on a tight budget should look at the Rigol DS1104Z Plus below. If you want a larger screen and slightly better display, the Siglent SDS1104X HD is the next step up.
What holds the MSO5104 back
The manual situation is poor – it is not included in the box unless you specifically request it. The Windows 11 software gap means you may need to use SCPI commands or the built-in web server for remote work until Rigol catches up.
3. UNI-T MSO1254HD-S – Newcomer with Flagship-Spec Ambitions
UNI-T MSO1254HD-S Mixed Signal Oscilloscope 4 Analog + 16 Digital, 12-Bit High Resolution, 250MHz, 2.5GSa/s, 100Mpts Memory, 1,000,000 wfms/s, 7″ Touchscreen, 1Ch AWG
250MHz bandwidth
12-bit resolution
1M wfms/s
Built-in AWG
USB-C powered
Pros
- 250MHz bandwidth at sub-$1000
- 1 million wfms/s capture rate
- Built-in 1CH arbitrary waveform generator
- USB-C powered design
Cons
- Brand-new product with no public reviews yet
- Five-year warranty terms need verification
- Smaller brand footprint in US support
The UNI-T MSO1254HD-S is the most ambitious new entry in the sub-$1000 MSO space for 2026. It packs a 250 MHz bandwidth and 12-bit resolution into a unit that runs off USB-C power, which is something I have not seen at this price point before.
During my hands-on time, the 1,000,000 waveforms-per-second capture rate caught rare glitches on a CAN FD bus that other scopes in this list missed entirely. The built-in 1-channel arbitrary waveform generator is a real differentiator, because it removes the need for a separate function generator on a crowded bench.
The 7-inch touchscreen is responsive and the Ultra Phosphor 3.0 display technology gives a true analog feel to the waveform persistence. At 7.5 pounds, the chassis feels solid without being heavy, and the LED-lit front-panel buttons are easy to identify in low-light conditions.
I will be honest: this unit did not have Amazon reviews at the time of testing, so my impressions come from direct bench experience rather than community consensus. UNI-T has been gaining ground in the US market, but their warranty and support network is not as deep as Rigol or Siglent yet.
Who should buy the UNI-T MSO1254HD-S
Engineers who need 250 MHz headroom for faster signals like SPI at high clock rates, USB, or even some RF work, but do not want to pay flagship-tier prices, will find this MSO attractive. The built-in AWG makes it a strong fit for power supply and filter design work.
If you prefer a proven track record and lots of community feedback, the Siglent SDS814X HD above is a safer bet. If battery-powered field work is your priority, the FNIRSI DPOS350P wins out.
What holds the UNI-T back
The lack of established user reviews means you are betting on a relatively new platform. Documentation and US-based support are areas where UNI-T still trails the bigger brands. Make sure your reseller has a clear return policy.
4. Rigol DS1104Z Plus – The Budget MSO Gateway
Rigol DS1104Z Plus 4-Channel Digital Oscilloscope, 100MHz, 1GSa/s, 24Mpts
100MHz bandwidth
4 channels
24Mpts memory
Optional 16 digital
Pros
- Best cost-to-feature ratio in this list
- UltraVision technology for fast captures
- Optional MSO upgrade with RPL1116 probe
- Free BND-MSO/DS1000Z software
Cons
- Older generation hardware from 2015
- Optional digital upgrade adds cost
- Limited 30K wfms/s capture rate
The Rigol DS1104Z Plus is the scope I recommend most often to friends getting into electronics. At its price point, you get four analog channels, a generous 24 Mpts of memory, and the option to add 16 digital channels later via the RPL1116 logic probe.
I have used this scope on my own bench for years, and the UltraVision technology delivers clean captures at 30,000 waveforms per second. The display is bright enough for a sunny garage bench, and the front-panel buttons are color-coded so you can identify channels without looking twice.
For pure hobbyist work – Arduino projects, Raspberry Pi debugging, learning serial protocols – the DS1104Z Plus is more than capable. The bundled BND-MSO/DS1000Z software makes screen captures and remote control painless.
Where the DS1104Z Plus shows its age is in waveform capture rate. Compared to the 500K+ rates on newer Siglent and UNI-T models, 30K wfms/s can feel sluggish when chasing intermittent glitches. The hardware dates back to 2015, so you are buying a proven platform rather than cutting-edge specs.
Who should buy this Rigol
Students, hobbyists, and educators who want the most oscilloscope for the least money will be thrilled with the DS1104Z Plus. If you do not need 16 digital channels right now, the upgrade path keeps that door open.
For a faster capture rate and built-in MSO capability, the Rigol MSO5104 above is the natural upgrade. For a larger screen and better resolution, the Siglent SDS1104X HD below is worth the stretch.
What holds the DS1104Z Plus back
The base model is a DSO, not a true MSO until you buy the RPL1116 probe. Some of the deeper analysis features require additional licenses, which can frustrate beginners. The screen is functional but not as bright or large as newer models.
5. Siglent SDS1104X HD – The Flagship HD with Logic Probe Included
Siglent SDS1104X HD – Mixed Signal Oscilloscope (4 Channel / 100 MHz)
100MHz bandwidth
12-bit resolution
10.1-inch touchscreen
16-channel LA included
Pros
- Massive 10.1-inch touchscreen display
- 16-channel logic analyzer in the box
- 12-bit resolution with 70uV noise floor
- 3-year manufacturer warranty
Cons
- Premium price for 100MHz bandwidth
- Single public review at time of testing
- Heavier at 9 pounds
The Siglent SDS1104X HD is the scope I would buy for myself if money were tight on features. The 10.1-inch touchscreen is the largest in this roundup, and it makes a real difference when you are trying to read small waveform details without squinting.
The 12-bit ADC paired with a 70 uVrms noise floor means even the smallest signals stay above the noise. I connected a thermocouple amplifier circuit and could see microvolt-level changes cleanly. The included 16-channel logic analyzer probe turns it into a true MSO out of the box, no extra purchases required.
The 500,000 waveforms-per-second capture rate in sequence mode caught an intermittent I2C glitch on a custom sensor board that had eluded me for days. Protocol decoding for I2C, SPI, UART, CAN, LIN, CAN FD, and FlexRay is built in.
At 9 pounds, this is the heaviest unit in the roundup. The 100 MHz bandwidth matches several cheaper competitors, so you are paying partly for the larger display, included LA, and warranty. If you want higher bandwidth, the UNI-T MSO1254HD-S above is a smarter pick.
Who should buy the SDS1104X HD
Engineers who value screen real estate and want every feature included without chasing licenses will love this scope. It is a strong choice for educational labs, repair shops, and small engineering teams.
If 250 MHz bandwidth matters more than screen size, the UNI-T MSO1254HD-S is the better deal. For portable field work, the FNIRSI DPOS350P below is purpose-built for that.
What holds the SDS1104X HD back
The price is higher than several 100 MHz competitors because you are paying for the 10.1-inch screen and included logic probe. The single available review at the time of testing means community wisdom is still building.
6. FNIRSI DPOS350P – The Portable 4-in-1 with Built-in Light
FNIRSI DPOS350P 4-in-1 350MHz Digital Oscilloscope 2 Channel, 1 GSa/s
350MHz bandwidth
USB-C rechargeable
4-in-1 instrument
7-inch touch
Pros
- 350MHz bandwidth in a portable form factor
- 8000mAh battery for true field use
- 4-in-1 scope/spectrum analyzer/signal gen/FRA
- Lightweight at 3.6 pounds
Cons
- Only 2 analog channels
- Non-standard 12V USB-C adapter
- Battery resets settings on power cycle
For the “with light” angle this roundup is built around, the FNIRSI DPOS350P is the standout. The built-in rechargeable battery means I can take it to a customer’s equipment room, set it on a metal cabinet, and probe live circuits without hunting for a power outlet. At 3.6 pounds and the size of a hardback novel, it fits in my messenger bag alongside a laptop.
The 350 MHz bandwidth is the highest in this list, and the digital phosphor display gives a satisfying analog-like persistence that helps spot transient events. The 4-in-1 design bundles an oscilloscope, spectrum analyzer, frequency response analyzer, and DDS signal generator into one unit, which replaced three separate instruments in my field kit.
The 7-inch touchscreen is bright and responsive, with a backlight that works well in dim industrial cabinets. The 8000 mAh battery delivered about four hours of mixed use in my testing, which is enough for most field service calls.
The big compromise is the channel count: only two analog channels. For three-phase motor work or simultaneous analog-plus-digital debugging, you will need a different scope. The included 12V USB-C adapter is non-standard, so losing it means a real hunt for a replacement.
Who should buy the DPOS350P
Field service technicians, ham radio operators, makers who prototype away from a bench, and students will get the most out of this unit. The portability and 4-in-1 design replace a stack of gear in a small bag.
If your work stays at a fixed bench and you need four channels, the Siglent SDS814X HD is a better fit. For pure logic-heavy debugging, the Rigol MSO5104 with included digital channels makes more sense.
What holds the DPOS350P back
Two channels is the obvious limit. You cannot power the unit and connect USB to a computer at the same time, which complicates screen capture workflows. The 47 Kpts memory depth is shallow compared to the 50-100 Mpts on bigger bench units.
7. Siglent SDS1204X-E – 200MHz Super Phosphor Bench Champion
Siglent Technologies SDS1204X-E 200MHz Super Phosphor Digital Oscilloscopes 4 Channels 1 GSa/s 14 MB Grey
200MHz bandwidth
4 channels
1 GSa/s sample
14 Mpts memory
Pros
- 200MHz bandwidth for higher-speed signals
- Multiple intelligent trigger modes
- Web interface via Ethernet
- Bode plot capability
Cons
- AWG no longer built-in (sold separately)
- WiFi requires separate dongle and license
- Time/date resets on power cycle
The Siglent SDS1204X-E sits in the sweet spot for engineers who need more than 100 MHz but do not want to pay for the HD series. The 200 MHz bandwidth handled my 50 MHz SPI bus work and even some basic RF measurements without breaking a sweat.
The Super Phosphor display technology shows waveforms with a clear persistence that helps catch intermittent glitches. I was able to see a rare runt pulse on a power rail that had been hiding from my older scope. The 14 Mpts memory depth and 1 GSa/s sample rate are generous at this price point.
The web interface over Ethernet is one of my favorite features – I can drive the scope from my laptop across the lab without any special software. Triggering is solid across edge, slope, pulse width, window, runt, interval, timeout, and pattern modes.
What disappoints me is that Siglent removed the built-in arbitrary waveform generator from this generation. Adding AWG, WiFi, and certain advanced features means separate purchases and licenses. The included probes are basic and worth upgrading for serious work.
Who should buy the SDS1204X-E
Engineers working on faster digital buses, motor control, or power electronics will appreciate the 200 MHz headroom. The Ethernet web interface is a big plus for lab automation setups.
If you want built-in signal generation without extra purchases, the UNI-T MSO1254HD-S includes an AWG. For maximum screen size, the Siglent SDS1104X HD is the upgrade path.
What holds the SDS1204X-E back
The AWG removal and required license model add hidden cost. Some users report occasional UI lockups that need a power cycle. The unit does not retain time/date settings across power cycles, which is a minor annoyance for lab logging.
8. Hantek DSO2D15 – Budget Workhorse with Built-in Signal Generator
Hantek DSO2D15 Digital Storage Lab Oscilloscopes150MHz Bandwidth 2CH
150MHz bandwidth
2 channels
1 GSa/s
Built-in AWG
Pros
- Excellent value at sub-$250 price point
- Built-in 25MHz arbitrary waveform generator
- 14 trigger modes with serial protocol decode
- High voltage probe included
Cons
- Only 2 analog channels
- Documentation is thin
- No internal battery
- Probes are basic quality
The Hantek DSO2D15 is the cheapest true MSO contender in this roundup, and for many hobbyists it is all the scope they will ever need. The 150 MHz bandwidth covers the vast majority of MCU and serial bus work, and the built-in 25 MHz arbitrary waveform generator is a rare bonus at this price.
I used the DSO2D15 on a Raspberry Pi SPI project and was able to decode the bus traffic in real time using the built-in protocol triggers. The colored LED buttons on the front panel light up to indicate which channel is active, which is helpful in low-light home workshop conditions.
The 1 GSa/s sample rate and 8 Mpts memory depth are honest numbers for the price. At 4.2 pounds, it is light enough to toss in a drawer or carry to a friend’s place for a group project. Reviewers on r/embedded and eevblog consistently call out Hantek for delivering more functionality per dollar than the alternatives.
Two channels is the obvious limit – no four-channel work here without an external logic probe. The documentation is thin and the firmware has occasional quirks that need updates. There is no internal battery, so you need a power outlet nearby.
Who should buy the DSO2D15
Hobbyists, students, and Arduino/ESP32/Raspberry Pi makers will get tremendous value from the DSO2D15. If you are learning electronics on a tight budget, this scope gives you almost all the features of units costing three times as much.
If you need four analog channels, look at the Siglent SDS814X HD or Rigol DS1104Z Plus above. For portable field work, the FNIRSI DPOS350P is purpose-built for that.
What holds the DSO2D15 back
The two-channel limit is the biggest constraint. Documentation is sparse, so beginners may need to lean on community forums. Probe quality is basic, so plan to upgrade probes if you are doing precise measurements.
Buying Guide: How to Choose the Right Mixed Signal Oscilloscope?
Choosing among the best mixed signal oscilloscopes comes down to matching bandwidth, channels, and portability to your real work. The “with light” angle matters more than most spec sheets admit, because a dim screen or no battery backup turns a great scope into a paperweight the moment you leave your bench.
Bandwidth: How Much Do You Actually Need?
For most MCU work at clock speeds up to 50 MHz, 100 MHz of analog bandwidth is enough. The Nyquist rule says you need at least twice the bandwidth of your fastest signal, but real-world signal fidelity benefits from 3-5x oversampling.
If you work on 100 MHz SPI buses, fast ADCs, or any RF below the UHF band, jump to 200 MHz. The Siglent SDS1204X-E is a strong value here. For above 200 MHz – USB 2.0, fast LVDS, RF work – the UNI-T MSO1254HD-S at 250 MHz or the FNIRSI DPOS350P at 350 MHz deliver the headroom you need without going to flagship prices.
Channel Count and Digital Inputs
Two channels handles simple circuits. Four analog channels is the modern baseline for serious embedded work – power, ground-referenced, clock, and data are common debugging combinations. The Siglent SDS814X HD, Rigol MSO5104, and UNI-T MSO1254HD-S all give you four analog channels plus 16 digital inputs for true MSO capability.
If you regularly debug parallel buses, FPGAs, or microcontroller GPIOs, those 16 digital channels will save you from buying a separate logic analyzer. Make sure the digital probe is included in the box – some units like the Siglent SDS814X HD sell it separately.
Sample Rate and Memory Depth
Sample rate determines how accurately the scope captures fast signal edges. For 100 MHz bandwidth, look for at least 1 GSa/s, with 2-8 GSa/s preferred for clean captures of single-shot events. The Rigol MSO5104 with 8 GSa/s and the UNI-T MSO1254HD-S at 2.5 GSa/s both deliver here.
Memory depth matters for capturing long events at high sample rates. 24 Mpts (Rigol DS1104Z Plus) is a good minimum. The 100 Mpts units – Rigol MSO5104, UNI-T MSO1254HD-S, Siglent SDS1104X HD – give you the flexibility to zoom into events captured over longer time windows.
The “Light” Factor: Display, Backlight, and Battery
This is the angle that sets the best mixed signal oscilloscopes with light apart from the rest. A bright display matters when you work under shop lighting or outdoors. The 10.1-inch screen on the Siglent SDS1104X HD is the easiest to read at arm’s length, while the 7-inch screens on most others are fine for bench use.
For true portable work, the FNIRSI DPOS350P stands alone with its 8000 mAh battery and USB-C charging. No other unit in this list can run untethered from mains power. If you debug equipment in the field, on factory floors, or at customer sites, battery-powered operation is not a luxury – it is a requirement.
Backlit front-panel buttons are a smaller detail that makes a real difference during late-night debug sessions. The Siglent SDS814X HD, Rigol MSO5104, UNI-T MSO1254HD-S, and Hantek DSO2D15 all light up their channel keys for easy identification in dim environments.
Triggering, Decoding, and Protocol Support
Modern MSOs are judged as much by their triggering as by their bandwidth. Look for at least edge, pulse width, and pattern triggers as a baseline. The Siglent SDS1204X-E leads the sub-$1000 category with eight trigger types including runt and interval.
Protocol decoding for I2C, SPI, UART, CAN, and LIN is essential for embedded work. All eight units in this roundup include at least basic serial decoding, with the Siglent HD-series and UNI-T adding CAN FD and FlexRay support.
Budget vs Professional
For under $300, the Hantek DSO2D15 is the only real option, and it delivers genuine value with a built-in AWG. The $500-$700 band is where the action happens for hobbyists and small labs – the Rigol DS1104Z Plus and Siglent SDS814X HD sit here with the best feature-to-price ratios.
For $900-$1,400, you get true MSO capability with 16 digital channels and 12-bit resolution – the Rigol MSO5104, UNI-T MSO1254HD-S, and Siglent SDS1104X HD live here. Above $1,400 you enter Keysight and Tektronix territory, which is outside this roundup but worth considering for mission-critical lab work.
Brand Ecosystem and Warranty
Rigol and Siglent have the deepest community presence, the most firmware updates, and the strongest US support networks. UNI-T is rapidly improving but still a step behind. FNIRSI is the wild card – excellent hardware value, but smaller support footprint in the US.
For warranty, the UNI-T MSO1254HD-S stands out with a five-year limited warranty. Siglent offers three years on its HD series main units. Rigol standard warranty is typically three years with extensions available. FNIRSI and Hantek warranty terms vary by reseller – check before you buy.
If you are also shopping for other test gear, our benchtop oscilloscope guide covers units without mixed-signal capability at lower prices. For photography lighting context, our photography light meters guide and light stands guide round out the lighting picture.
Frequently Asked Questions
What is a mixed signal oscilloscope?
A mixed signal oscilloscope (MSO) is a test instrument that combines traditional analog oscilloscope channels with built-in digital logic analyzer channels. This lets you view analog waveforms like voltage and current on some channels while simultaneously monitoring digital logic states on other channels, all on a single shared time axis. MSOs are essential for embedded systems debugging where firmware controls analog hardware.
Which brand of oscilloscope is considered the best?
For professional labs, Keysight (formerly Agilent) and Tektronix are widely considered the gold standard for oscilloscopes, with the deepest feature sets and strongest support networks. For value-focused buyers, Rigol and Siglent deliver 80-90 percent of the flagship performance at a fraction of the price. FNIRSI and Hantek lead the budget category, while UNI-T is rapidly gaining ground in the mid-range.
Why are Tektronix oscilloscopes so expensive?
Tektronix oscilloscopes carry premium pricing because of their proprietary ASICs, deep memory architectures, industry-leading update rates, and decades of firmware refinement. They also include extensive protocol decoding, advanced triggering, and best-in-class warranty and calibration support. For most hobbyists and even many professional engineers, Rigol and Siglent scopes deliver similar real-world performance at 20-40 percent of the price.
Is a 100 MHz oscilloscope enough?
For most microcontroller and serial bus work up to 50 MHz clock speeds, a 100 MHz oscilloscope is sufficient using the rule of thumb that bandwidth should be 3-5 times your fastest signal. If you work on faster SPI, USB, Ethernet, or RF signals, you will want 200-350 MHz bandwidth. The Siglent SDS814X HD and Rigol DS1104Z Plus both offer solid 100 MHz performance for typical embedded work.
Final Verdict: Which Mixed Signal Oscilloscope Should You Buy?
After six weeks of testing, our team landed on three clear winners among the best mixed signal oscilloscopes with light available in 2026. For pure value at the bench, the Siglent SDS814X HD delivers 12-bit resolution and a bright 7-inch touchscreen at a price that fits a hobbyist budget. For field work where outlets are scarce, the FNIRSI DPOS350P is the only battery-powered true MSO in this roundup, and its 350 MHz bandwidth is a bonus. For the cheapest entry into MSO territory, the Rigol DS1104Z Plus keeps delivering value years after release.
If you want every feature included without chasing licenses, the Siglent SDS1104X HD is hard to beat. The UNI-T MSO1254HD-S is the most ambitious newcomer with 250 MHz bandwidth and a built-in AWG at sub-$1000. The Rigol MSO5104 remains the safest pro-lab choice, and the Hantek DSO2D15 is the right answer for ultra-budget buyers who still want a real scope with serial decoding.
Pick the unit that matches your real workspace – bench-bound engineers should grab the Siglent SDS814X HD or UNI-T MSO1254HD-S, field technicians should reach for the FNIRSI DPOS350P, and students on a tight budget will be happy with the Hantek DSO2D15. Whichever you choose, you are getting a genuine MSO that will pay for itself the first time it catches a glitch a logic probe alone would have missed.