10 Best Digital Oscilloscopes 2026 in the United States

The Tektronix TBS2204B is a digital storage oscilloscope designed for users who require precision and versatility in their measurements. With a bandwidth of 200 MHz and a sampling rate of 2 GS/s, it offers a solid performance for a variety of electronic applications, making it suitable for both professionals and advanced hobbyists. The four analog channels allow users to observe multiple signals simultaneously, which is particularly beneficial when troubleshooting complex circuits.

One of the standout features is the 5 M record length on all channels, providing ample memory for capturing longer signal events. This is great for detailed analysis without missing crucial data. The 9-inch WVGA color display is another strong point, offering 50% more horizontal grids compared to many competitors, which enhances visibility and makes it easier to analyze waveforms clearly.

There are some drawbacks to consider. At 39.68 pounds, the oscilloscope is relatively heavy and might not be ideal for portable use or for those needing a device that can be easily transported. Additionally, while the specifications are impressive, beginners might find the professional-grade features overwhelming, as they require a certain level of expertise to fully utilize.

The Siglent Technologies SDS1202X-E is a digital oscilloscope that stands out for its 200 MHz bandwidth, making it suitable for a wide range of applications, from basic electronics to more complex circuit analysis. With a real-time sampling rate of up to 1 GS/s, it captures fast signal changes effectively, which is a strong point for users needing accurate signal representation. The 14 Mpts memory depth allows for significant data collection, enabling users to analyze long signals without losing detail, which is particularly beneficial for troubleshooting and research work.

On the convenience side, it features two channels, allowing users to compare signals from different points within a circuit, enhancing its versatility. The standard serial bus triggering is a notable advantage, supporting various communication protocols such as IIC, SPI, UART, RS232, CAN, and LIN, making it a solid choice for those working with integrated systems.

While it offers good performance for its category, the display quality may not be as high as some premium models, which could impact visibility in certain lighting conditions. Additionally, being a product from China, some users may have concerns regarding long-term support and warranty services compared to brands with a more established presence in their region. The Siglent Technologies SDS1202X-E is well-suited for hobbyists, engineering students, and professionals looking for a reliable oscilloscope without a hefty price tag. Its balance of features and performance makes it a strong contender in the digital oscilloscope market, but potential buyers should consider their specific needs regarding display quality and after-sales support.

The Fluke 190-204/AM/S is a handheld digital oscilloscope with four channels and a 200 MHz bandwidth, making it suitable for professionals who need to capture and analyze multiple electrical signals simultaneously. Its real-time sample rate is 2.5 GS/s, which helps in accurately displaying fast-changing signals, and the memory depth of 10,000 points per channel allows detailed waveform recording. The 6-inch color LCD is large enough to view up to four waveforms or measurements at once, which is helpful for clear analysis on the go.

It also features handy tools like zoom, math functions including FFT for frequency analysis, and automatic measurements to simplify signal interpretation. Safety ratings for use in high-voltage environments (CAT III 1000V and CAT IV 600V) make it reliable for industrial settings. One thing to note is its weight—about 16 pounds—which is heavier than many portable scopes, so it might feel bulky during extended handheld use.

This oscilloscope represents a strong choice for technicians seeking a rugged, multi-channel instrument with good bandwidth and sample rate, especially when working in demanding environments.