10 Best Digital Oscilloscopes 2025 in the United States

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 RIGOL Digital Oscilloscope DHO814 is designed for professionals and hobbyists who need reliable performance in a compact package. With a bandwidth of 100 MHz and up to 1.25 GSa/s sample rate, it meets the demands of various applications, from basic electronics to more complex signal analysis. The device's 12-bit vertical resolution enhances the clarity of signals, allowing for better observation of small fluctuations that may otherwise go unnoticed.

One of its standout features is the support for up to four analog channels, enabling users to analyze multiple signals simultaneously, which is a significant advantage in complex diagnostic scenarios. The 25 Mpts memory depth allows for capturing longer signals without losing detail, making it ideal for applications requiring extensive data capture. The user-friendly 7-inch touchscreen display coupled with the innovative Flex knob improves usability significantly, making navigation through options intuitive.

However, there are some drawbacks to consider. While the 100 MHz bandwidth is sufficient for many applications, professionals working with higher frequency signals may find it limiting. Additionally, though the waveform search and navigation functions are beneficial, they may have a learning curve for beginners. There are also some competitors that offer higher specifications at a similar price point, which could be a consideration for users wanting the latest features.

The Rigol DS1104Z-S Plus Digital Oscilloscope is a versatile tool designed for those needing detailed signal analysis. With a bandwidth of 100 MHz and a sample rate of 1 GSa/sec, it captures fast and complex waveforms effectively. The oscilloscope comes with four analog channels, allowing for simultaneous measurement of multiple signals, which is beneficial for comparing waveforms or analyzing multi-channel circuits.

A significant feature is its 24Mpts memory depth, enabling the capture and analysis of long signal sequences without compromising resolution. This large memory is particularly useful for troubleshooting and signal integrity analysis in complex applications. The inclusion of a built-in 25 MHz function/arbitrary waveform generator adds value by providing signal generation capabilities, which can be handy for testing and debugging purposes without requiring additional equipment.

The device also includes a digital logic connector for optional MSO upgrades, making it future-proof and adaptable to more advanced mixed-signal applications with the purchase of the MSO Upgrade Kit. One notable advantage is the free software bundle included, which enhances the functionality of the oscilloscope with additional tools for analysis and reporting. The Rigol DS1104Z-S Plus is best suited for engineers, technicians, and hobbyists who require a robust and expandable digital oscilloscope for diverse and complex signal analysis tasks.