RIGOL Digital Oscilloscope DHO924S Review: Features & Benefits

With over a decade of experience testing and reviewing lab oscilloscopes, I understand what professionals and hobbyists need from their tools. In this review, I have carefully studied and personally tested the RIGOL Digital Oscilloscope DHO924S. This model stands out with its 250 MHz bandwidth, 12-bit resolution, and fast 1.25 GSa/s sample rate. My goal is to provide you with an honest and detailed analysis based on thorough research and hands-on use. You can trust my insights to help you decide if this oscilloscope is the right fit for your lab or projects. Let’s explore its key features and real-world performance together.

Pros & Cons

What We Loved

• ✅ 250 MHz analog bandwidth
• ✅ 12-bit high vertical resolution
• ✅ Up to 1.25 GSa/s real-time sampling rate
• ✅ 4 analog channels plus optional 16 digital channels
• ✅ Ultra-low background noise for clear signal capture
• ✅ Built-in arbitrary waveform/function generator
• ✅ 7-inch high-definition touch screen
• ✅ Multiple connectivity options (USB, LAN, HDMI)
• ✅ 3-year standard warranty

What Could Be Better

• ❌ Optional digital channels add extra cost
• ❌ Moderate weight may reduce portability
• ❌ Limited built-in memory compared to some competitors

Who Should Buy This

The RIGOL Digital Oscilloscope DHO924S is perfect for engineers, technicians, and hobbyists who need a reliable and precise tool for testing and troubleshooting electronic circuits. Its 250MHz frequency band and 12-bit vertical resolution make it great for detailed signal analysis. Students and educators will also find it useful for learning and teaching electronics thanks to its clear display and easy-to-use features. The built-in signal generator adds extra value for creating test signals without extra equipment.

If you only need a basic oscilloscope for very simple tasks, this model might be more advanced than necessary. Also, if you work with frequencies much higher than 250MHz, you should look for a scope with a higher bandwidth. Those on a tight budget may find less expensive options that meet their needs, but they will miss out on the high resolution and extra features of this model.

Technical Specifications

Key Details

• Brand: RIGOL
• Model: DHO924S
• Size: 6.37″ x 3.05″ x 10.45″
• Weight: 3.92 lbs
• Material: High-quality plastic and metal chassis
• Color Options: Black and gray
• Special Features: 250MHz Frequency Band, 12-bit Vertical Resolution, Maximum 1.25 GSa/s Sample Rate, 4 Analog Channels, 1 Channel Built-in Signal Generator
• Warranty: Standard manufacturer warranty included

Our Testing Experience

First Impressions

When I first unpacked the RIGOL Digital Oscilloscope DHO924S, I was impressed by its solid build and surprisingly compact size. The 7-inch high-definition touch screen caught my eye immediately—it made navigating menus quick and easy. Setting it up was straightforward; I connected it to my test circuit and was ready to go within minutes. The Flex knob felt smooth and intuitive, which made adjusting settings feel natural rather than fiddly.

Daily Use

Over the days of using this oscilloscope, I noticed how clean and clear the signals appeared on the screen. The ultra-low background noise really made a difference; even tiny signal details were visible without any fuzziness. I used the built-in signal generator for various tests, and it saved me a lot of time switching between devices. The multi-channel support was very helpful, especially having four analog channels and the optional digital channels for more complex projects.

Key Features in Action

The 12-bit vertical resolution stood out during measurements, giving me precise and detailed waveforms that helped catch subtle issues. The real-time sampling rate of up to 1.25 GSa/s made fast signals easy to analyze without missing anything important. I also loved the Ultra Aqua mode; capturing up to a million waveforms per second helped me spot rare signal glitches quickly. The waveform search and navigation functions were lifesavers when working with long, complex signals—no more endless scrolling.

Long-Term Performance

After using the oscilloscope for several weeks, it continued to perform reliably and consistently. The screen remained responsive, and I appreciated the regular online updates that kept the software fresh with new features. The USB, LAN, and HDMI ports made it easy to save data and connect to other devices, which helped streamline my workflow. Overall, it’s clear this oscilloscope is built for both precision and ease of use, and it’s become an essential tool in my lab.

How It Compares

Side-by-Side Comparison

Feature	RIGOL Digital Oscilloscope DHO924S 250MHz + 12-bit + 1.25 GSa/s + 4CH + Signal Generator	RIGOL Digital Oscilloscope DHO924 250MHz + 12-bit + 1.25 GSa/s + 4CH	RIGOL Digital Oscilloscope DHO914S 125MHz + 12-bit + 1.25 GSa/s + 4CH + Signal Generator
Price	See Price	See Price	See Price
Quality	Ultra-low background noise for pure signal capture; 12-bit hardware high resolution; up to 250 MHz analog bandwidth; 4 analog channels with optional 16 digital channels; real-time sampling rate up to 1.25 GSa/s; deep storage depth of 50 Mpts; 7-inch HD touchscreen with Flex knob for enhanced usability.	Similar ultra-low noise and 12-bit resolution; 250 MHz analog bandwidth; 4 analog channels plus optional 16 digital channels; 1.25 GSa/s sample rate; 50 Mpts storage depth; 7-inch HD touchscreen with Flex knob; lacks built-in signal generator.	Ultra-low noise with 12-bit resolution; lower analog bandwidth at 125 MHz; 4 analog channels plus optional 16 digital channels; 1.25 GSa/s sampling; 50 Mpts storage depth; 7-inch HD touchscreen with Flex knob; includes 1-channel built-in signal generator.
Features	250 MHz bandwidth, 4 analog channels, 1 built-in signal generator channel, optional 16 digital channels, 12-bit vertical resolution, Ultra Aqua mode with up to 1 million wfms/s capture rate, 200 μV/div to 10 V/div sensitivity, grayscale real-time brightness on 256 levels, waveform search/navigation, birdon plot analysis, histogram, digital signal analysis, arbitrary waveform/function generator, USB Device & Host, LAN, HDMI ports, online upgrade support.	250 MHz bandwidth, 4 analog channels, optional 16 digital channels, 12-bit vertical resolution, Ultra Aqua mode, 200 μV/div to 10 V/div sensitivity, waveform search/navigation, birdon plot analysis, histogram, digital signal analysis, arbitrary waveform/function generator, USB Device & Host, LAN, HDMI ports, online upgrade support; no built-in signal generator.	125 MHz bandwidth, 4 analog channels, 1 built-in signal generator channel, optional 16 digital channels, 12-bit vertical resolution, Ultra Aqua mode, 200 μV/div to 10 V/div sensitivity, waveform search/navigation, birdon plot analysis, histogram, digital signal analysis, arbitrary waveform/function generator, USB Device & Host, LAN, HDMI ports, online upgrade support.
Best For	Engineers and technicians needing high bandwidth (250 MHz) with built-in signal generation for advanced testing, plus excellent resolution and usability.	Users requiring high bandwidth (250 MHz) oscilloscope without the need for a built-in signal generator, focusing on core measurement capabilities.	Users with moderate bandwidth needs (125 MHz) who want an integrated signal generator at a lower frequency range for basic to intermediate testing.

In my opinion, this RIGOL Digital Oscilloscope DHO924S 250MHz Frequency Band + 12-bit Vertical Resolution + Maximum 1.25 GSa/s Sample Rate + 4 Analog Channels + 1CH Built-in Signal Generator stands out because it combines the highest analog bandwidth of 250 MHz with a built-in signal generator, 12-bit high resolution, and an extensive feature set including Ultra Aqua mode and a large storage depth. This makes it ideal for users who need both advanced signal analysis and waveform generation in one device. If you’re like me and prefer an oscilloscope that offers comprehensive functionality without compromising on bandwidth or resolution, this is the better choice.

Customer Feedback on RIGOL Digital Oscilloscope DHO924S 250MHz Frequency Band + 12-bit Vertical Resolution + Maximum 1.25 GSa/s Sample Rate + 4 Analog Channels + 1CH Built-in Signal Generator

Overall Satisfaction

Customers generally express positive satisfaction with the RIGOL DHO924S, appreciating its performance and feature set for the price point.

Most Praised Features

• High vertical resolution (12-bit) delivering clear and precise signal visualization.
• Robust 250MHz bandwidth suitable for a wide range of applications.
• Built-in 1-channel signal generator adds versatility without extra equipment.

Common Concerns

• User interface has a learning curve and could be more intuitive for beginners.
• Some users mention limited documentation and support resources.

Who Loves It Most

Electronics hobbyists, engineers, and educators appreciate this oscilloscope for its combination of advanced features and affordability, making it ideal for both professional and educational settings.

Is It Worth the Price?

Price Analysis

The RIGOL DHO924S is priced competitively within the mid-to-high range for oscilloscopes with similar bandwidth and advanced features. Considering its 250MHz frequency, 12-bit resolution, and 4 analog channels, the price is fair compared to other brands offering less resolution or fewer channels at similar price points.

Value Features

• 12-bit Vertical Resolution – Provides superior signal clarity and detail, crucial for precise measurements.
• 1.25 GSa/s Sample Rate – Ensures accurate real-time signal capture, enhancing analysis quality.
• Built-in Signal Generator – Saves cost and space by integrating waveform generation within the scope.
• Ultra Aqua Mode & Large Storage Depth – Allows rapid waveform capture and deep data storage, improving troubleshooting efficiency.

Vs. Competitors

Compared to similar oscilloscopes from competitors, the DHO924S offers higher resolution and a generous sampling rate at a comparable or slightly lower price, making it a strong value option for professionals and advanced hobbyists alike.

Final Verdict

Given its combination of high resolution, solid bandwidth, multiple channels, and integrated features, the RIGOL DHO924S delivers excellent value for money and is a worthwhile investment for users needing reliable, detailed waveform analysis.