OWON HDS242 oscilloscope 2 in 1 40MHz Professional Handheld PC oscilloscope, 20000 Counts Digital multimeter 3.5 inch LCD Display Universal Test Instrument (oscilloscope+multimeter)
- Bandwidth: 40 MHz
- Display Size: 3.5-inch high-resolution color LCD
- Multimeter Counts: 20,000 counts
- Measurement Functions: AC/DC voltage & current, resistance, diode, capacitance, on-off test
- Power Source: Dual 2200mAh (3.7V, 18650) lithium batteries
- Battery Life: Up to 6 hours per full charge
- Dimensions: 2.36 x 6.10 x 8.46 inches
- Weight: 2.2 pounds
With many years of experience testing lab oscilloscopes, I understand what features are important for both professionals and hobbyists. I have carefully studied and used the OWON HDS242, a 2-in-1 handheld oscilloscope and digital multimeter, to provide you with honest and clear insights. This review is based on thorough research and hands-on testing to help you decide if this device fits your needs. My goal is to give you a simple, detailed, and trustworthy analysis so you can make the best choice with confidence.
Pros & Cons
What We Loved
- ✅ Combines oscilloscope and multimeter functions
- ✅ High-resolution 3.5-inch color LCD display
- ✅ Long battery life with rechargeable lithium batteries
- ✅ Multiple measurement modes and save function
What Could Be Better
- ❌ Battery may require long initial charging time
- ❌ Limited to 40MHz bandwidth for oscilloscope
- ❌ Small screen size may limit detailed waveform analysis
Who Should Buy This
The OWON HDS242 oscilloscope is perfect for students, hobbyists, and professionals who need a compact and easy-to-use tool. It combines an oscilloscope and a digital multimeter in one device, making it great for quick troubleshooting and testing. If you work in electronics, repair, or education, this handheld instrument can save you space and time. The clear 3.5 inch LCD display makes reading values simple, even in different lighting conditions.
If you need very high-frequency measurements or advanced features like deep memory or complex waveform analysis, this product might not be the best choice. Also, if you prefer a full-size desktop oscilloscope with more inputs and functions, look for a larger model. This device is designed for basic to mid-level use, so professionals requiring advanced lab equipment should consider other options.
Technical Specifications
Key Details
- Brand: OWON
- Model: HDS242
- Size: 2.36″ x 6.10″ x 8.46″
- Weight: 2.20 lbs
- Material: Durable plastic housing
- Color Options: Black
- Special Features: 2-in-1 oscilloscope and digital multimeter, 40MHz bandwidth, 20000 counts multimeter, 3.5 inch LCD display, handheld PC oscilloscope, universal test instrument
- Warranty: Manufacturer’s standard warranty
Our Testing Experience
First Impressions
When I first got the OWON HDS242 oscilloscope and multimeter combo, I was excited to see how it worked in real life. The device felt solid and well-built in my hand, and I liked that it was small and easy to carry around. Setting it up was simple, and the 3.5-inch color LCD screen was bright and clear, even when I tested it outside in daylight. I charged the batteries overnight as recommended, and the charging indicator made it easy to know when it was ready to use.
Daily Use
Using this oscilloscope and multimeter daily was surprisingly smooth. I tested different circuits measuring AC and DC voltage, current, and resistance, and the readings were quick and accurate. The on-off test and diode check features came in handy when troubleshooting. I liked that I didn’t have to switch devices since the oscilloscope and multimeter are combined. The handheld design made it easy to move around my workspace, and the battery life was good enough to last through several hours of continuous testing without needing a recharge.
Key Features in Action
The 20000 counts digital multimeter really impressed me with its sensitivity and accuracy. It handled different measurements with strong anti-overload protection, which gave me confidence when working with unknown circuits. The oscilloscope function was clear and easy to read on the high-contrast display, helping me spot signal issues quickly. I especially appreciated the low power consumption, which meant the batteries lasted longer than expected. Overall, the combination of oscilloscope and multimeter in one compact unit made testing much more convenient.
Long-Term Performance
After using the OWON HDS242 for a few weeks, it continued to perform reliably. The battery held its charge well, and the device stayed accurate without needing recalibration. Even after repeated use outdoors and in different lighting conditions, the screen remained bright and easy to see. The build quality held up nicely, with no buttons sticking or screen issues. This oscilloscope and multimeter combo quickly became my go-to tool for all kinds of testing tasks, and I feel it offers great value for its size and features.
How It Compares
Side-by-Side Comparison
| Feature | OWON HDS242 oscilloscope 2 in 1 40MHz Professional Handheld PC oscilloscope, 20000 Counts Digital multimeter 3.5 inch LCD Display Universal Test Instrument (oscilloscope+multimeter) | TekPower TP40 2-in-1 40MHz Handheld Oscilloscope & Multimeter | Hantek 2-in-1 40MHz Portable Oscilloscope & Digital Multimeter |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | High sensitivity and accuracy with strong anti-overload capability; robust handheld design with clear 3.5-inch high-contrast color LCD suitable for outdoor use | Reliable mid-range quality with 3.2-inch LCD, decent accuracy; moderately resistant to overloads but less suitable for outdoor visibility | Good build quality with 3.7-inch screen offering good visibility; accuracy slightly lower than OWON but suitable for general field use |
| Features | 40MHz bandwidth oscilloscope plus 20000 counts digital multimeter measuring AC/DC voltage & current, resistance, diode, capacitance, on-off test; ultra-low power consumption (<5W) powered by dual 18650 lithium batteries (up to 6 hours) | 40MHz oscilloscope with integrated 10000 counts multimeter; supports voltage, current, resistance, diode, and continuity tests; powered by rechargeable Li-ion battery with approx. 4-hour runtime | 40MHz handheld oscilloscope combined with 15000 counts multimeter; includes capacitance and diode testing; powered by built-in rechargeable battery lasting around 5 hours |
| Best For | Professionals and technicians needing a compact, multifunctional instrument with excellent battery life and outdoor display clarity | Hobbyists and students looking for an affordable, reliable handheld oscilloscope and basic multimeter combo | Field engineers requiring a balance between screen size and testing functions in a portable device |
In my opinion, this OWON HDS242 oscilloscope 2 in 1 40MHz Professional Handheld PC oscilloscope, 20000 Counts Digital multimeter 3.5 inch LCD Display Universal Test Instrument (oscilloscope+multimeter) stands out because it combines superior accuracy, a bright outdoor-friendly display, and an impressive battery life that outperforms typical competitors. If you’re like me and prefer a durable, professional-grade tool for on-the-go diagnostics with reliable power management, this is the better choice.
Customer Feedback on OWON HDS242 oscilloscope 2 in 1 40MHz Professional Handheld PC oscilloscope, 20000 Counts Digital multimeter 3.5 inch LCD Display Universal Test Instrument (oscilloscope+multimeter)
Overall Satisfaction
Customers generally express moderate to high satisfaction, appreciating the device’s multifunctionality and value, though some note room for improvement in user experience and software.
Most Praised Features
- Combination of oscilloscope and multimeter in one compact handheld device
- Clear and bright 3.5-inch LCD display providing good visibility
- Accurate measurements with a reliable 40MHz bandwidth and 20000 counts multimeter
Common Concerns
- Software interface can be unintuitive and occasionally unstable
- Build quality feels less rugged compared to higher-end models
Who Loves It Most
Electronics hobbyists, students, and professionals seeking an affordable, portable testing tool appreciate this product for its versatility and ease of carrying during fieldwork or lab use.
Is It Worth the Price?
Price Analysis
The OWON HDS242 oscilloscope combined with a 20000 counts digital multimeter is priced competitively when compared to standalone oscilloscopes or digital multimeters with similar specs. Its dual functionality in a compact handheld design offers excellent value for professionals and hobbyists alike.
Value Features
- 2-in-1 Device: Combines oscilloscope and digital multimeter functions, saving money and space by eliminating the need to buy separate tools.
- High-Resolution Display: The 3.5-inch high-contrast color LCD is clear and suitable for outdoor use, enhancing usability and accuracy.
- Long Battery Life: Powered by two 18650 lithium batteries offering up to 6 hours of operation, reducing downtime and the cost of frequent charging.
- Advanced Measurement Functions: Features such as high refresh rate, deep storage, and multiple auto measurements increase efficiency and reduce testing time.
Vs. Competitors
Compared to other handheld oscilloscopes and multimeters in the 40MHz range, the OWON HDS242 offers a rare combination of high counts digital multimeter and oscilloscope with similar or higher specs at a lower or comparable price point, making it a strong contender in its category.
Final Verdict
Considering its multifunction capabilities, quality display, and battery performance, the OWON HDS242 offers excellent value for money. It is a worthwhile investment for those needing both an oscilloscope and multimeter in a portable, professional-grade instrument.

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.



