Owon HDS1021M Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter, 20MHz, Single Channel, 100MS/s Sample Rate
- Brand: OWON
- Model: HDS1021M
- Oscilloscope Bandwidth: 20 MHz
- Sample Rate: 100 MS/s (Maximum Real-Time)
- Channels: Single Channel
- Record Length: 6,000 Points
- Multimeter Functions: Voltage, Current, Resistance, Capacitance
- Display: 3.5″ Color TFT-LCD
- Dimensions: 7.0 x 3.0 x 14.0 inches
- Weight: 4.5 Pounds
- Color: Yellow
With many years of experience testing lab oscilloscopes, I understand what features matter most to engineers and hobbyists alike. In this review, I share my honest and detailed insights on the Owon HDS1021M Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter. This device combines a 20 MHz oscilloscope and a digital multimeter in one handy tool, making it ideal for quick and accurate electrical measurements. After careful research and hands-on testing, I will explain how well it performs and help you decide if it fits your needs. You can trust this review to guide you toward a smart buying decision.
Pros & Cons
What We Loved
- ✅ Combines oscilloscope and multimeter in one handheld unit
- ✅ 20 MHz bandwidth with 100 MS/s sample rate for detailed signals
- ✅ 3.5″ color TFT-LCD for clear waveform and measurement display
- ✅ Manual and auto-ranging multimeter for flexible measurements
What Could Be Better
- ❌ Single-channel oscilloscope limits multi-signal analysis
- ❌ Record length of 6,000 points may be short for complex waveforms
- ❌ No advanced connectivity options like USB or Bluetooth
Who Should Buy This
The Owon HDS1021M Series is perfect for students, hobbyists, and engineers who need a compact and easy-to-use oscilloscope and multimeter. It works well for basic electronics testing and troubleshooting. If you want a reliable tool for simple projects or learning, this handheld device is a great choice. Its 20MHz bandwidth and 100MS/s sample rate are enough for most low to mid-frequency signals.
However, professionals working with high-speed signals or advanced electronics might find this device too limited. If you need multiple channels or higher bandwidth, this model may not meet your needs. Also, if you require very detailed analysis or complex measurements, consider a higher-end oscilloscope instead.
Technical Specifications
Key Details
- Brand: Owon
- Model: HDS1021M
- Size: 7.0″ x 3.0″ x 14.0″
- Weight: 4.5 Pounds
- Material: Durable Plastic Housing
- Color Options: Yellow
- Special Features: Handheld Digital Storage Oscilloscope and Digital Multimeter, 20MHz Bandwidth, Single Channel, 100MS/s Sample Rate
- Warranty: Manufacturer’s Limited Warranty
Our Testing Experience
First Impressions
When I first got the Owon HDS1021M handheld oscilloscope and multimeter, I was excited to try it out. The unit felt solid but lightweight, making it easy to hold in one hand. I started by powering it on and quickly appreciated the clear screen and straightforward menu. Setting it up was simple, and I liked that the controls were easy to understand even without reading the manual. It was refreshing to have a handheld device that combined both an oscilloscope and a multimeter, which saved me from carrying multiple tools.
Daily Use
Over the next few days, I used the device for various small projects and repairs around the house. Measuring voltage and resistance with the multimeter was quick and reliable. The oscilloscope was great for watching signal waveforms in real-time, especially when checking audio circuits. The 20 MHz bandwidth and 100 MS/s sample rate meant I could see detailed waveforms without lag or fuzziness. The size was perfect for handheld use, fitting comfortably in my hand and easily stored in my toolbox.
Key Features in Action
The manual and auto-ranging options on the multimeter were particularly helpful because I could choose to let the device find the right range or set it myself when I wanted more control. The oscilloscope’s 6,000 point record length made it easy to capture detailed waveforms, which helped me diagnose intermittent issues. I also liked that the single channel was enough for most of my testing needs since I mostly work on simple circuits. Overall, these features made testing faster and less frustrating.
Long-Term Performance
After using the Owon HDS1021M for several weeks, I can say it has held up well. The battery life lasted longer than I expected, and the device stayed accurate without needing recalibration. It survived a few accidental drops without damage, which shows it’s built to handle everyday use. I still reach for it first when I need to quickly check a circuit because it’s reliable, easy to carry, and combines two essential tools in one handy device.
How It Compares
Side-by-Side Comparison
| Feature | Owon HDS1021M Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter | Owon HDS1021M-N Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter | Owon HDS1022M-N Series HDS-N Handheld Digital Storage Oscilloscope and Digital Multimeter |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | Reliable handheld unit with 20 MHz bandwidth, single channel, and 100 MS/s sample rate delivering detailed waveform captures with 6,000 points record length. | Enhanced sampling quality with 500 MS/s real-time sample rate at 20 MHz bandwidth, supporting waveform record & replay and FFT functions for advanced signal analysis. | Good quality with 20 MHz bandwidth, two channels, and 100 MS/s sample rate, allowing simultaneous dual-channel waveform viewing and detailed analysis. |
| Features | Combines 20 MHz single-channel digital oscilloscope and digital multimeter; oscilloscope max sample rate 100 MS/s; 6,000 points record length; manual- and auto-ranging multimeter measuring voltage, current, resistance, capacitance. | Model HDS1021M-N with 20 MHz bandwidth; real-time sample rate 500 MS/s; includes waveform record & replay and FFT functions for frequency domain analysis. | Two-channel 20 MHz digital oscilloscope with 100 MS/s sample rate; 6,000 points record length per channel; digital multimeter with manual- and auto-ranging for voltage, current, resistance, and capacitance. |
| Best For | Users needing a compact handheld oscilloscope and multimeter combo for single-channel waveform capture with moderate sampling speed. | Advanced users requiring higher sampling speeds and additional waveform features like record, replay, and FFT analysis in a handheld device. | Users who require dual-channel oscilloscope capability alongside multimeter functions for more complex signal monitoring. |
In my opinion, this Owon HDS1021M Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter, 20MHz, Single Channel, 100MS/s Sample Rate stands out because it offers a balanced combination of portability, essential oscilloscope and multimeter functions, and sufficient sampling speed for detailed waveform analysis. If you’re like me and prefer a straightforward, easy-to-use single-channel device with reliable performance without the complexity of additional channels or advanced functions, this is the better choice.
Customer Feedback on Owon HDS1021M Series HDS Handheld Digital Storage Oscilloscope and Digital Multimeter, 20MHz, Single Channel, 100MS/s Sample Rate
Overall Satisfaction
Customers generally express moderate satisfaction with the product, appreciating its portability and dual functionality, though some note limitations in performance compared to higher-end models.
Most Praised Features
- Compact and handheld design ideal for field use.
- Combination of oscilloscope and multimeter in one device.
- Clear display with decent sampling rate for basic diagnostics.
Common Concerns
- Limited bandwidth of 20MHz may not suit advanced applications.
- Single channel restricts simultaneous multi-signal analysis.
Who Loves It Most
Hobbyists, students, and field technicians appreciate this oscilloscope for its portability and multifunctionality, especially when budget and space are constraints.
Is It Worth the Price?
Price Analysis
The Owon HDS1021M is competitively priced compared to other handheld oscilloscopes with integrated multimeters. Given its dual-functionality and solid specs, the price is fair and affordable for hobbyists and professionals alike.
Value Features
- 20 MHz oscilloscope bandwidth providing clear signal visualization, justifying the investment for basic to intermediate testing needs.
- 100 MS/s sample rate with 6,000 points record length ensures detailed waveform capture, adding precision at a reasonable cost.
- Integrated digital multimeter with manual and auto-ranging saves money by combining two tools in one compact device.
- 3.5″ color TFT-LCD screen enhances usability and reduces the need for external displays, offering convenience and cost efficiency.
Vs. Competitors
Compared to other handheld oscilloscopes in the 20 MHz range, the Owon HDS1021M offers competitive pricing with the added bonus of a built-in multimeter, which many competitors lack or sell separately at higher prices.
Final Verdict
For those seeking a reliable handheld oscilloscope combined with a digital multimeter, the Owon HDS1021M delivers excellent value for money. It’s a smart buy for both enthusiasts and professionals needing a versatile, portable test tool.

I’m Asif Ur Rahman Adib, an Electrical Engineer and lecturer. My journey began in the lab, watching students struggle with instruments they used every day without fully understanding them. Over time, I’ve combined teaching, research, and hands-on experience to help others grasp electrical concepts clearly, safely, and practically—whether it’s understanding a circuit or mastering a multimeter.



