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 Siglent Technologies SDS1104X-E is a solid choice for those looking into digital oscilloscopes, particularly for hobbyists and professionals who need versatile and reliable performance. With a bandwidth of 100 MHz and a decent sample rate, this oscilloscope is equipped to handle a variety of signal measurements. It supports four channels, making it useful for more complex analyses where multiple signals need to be monitored simultaneously. The addition of a standard decoder for protocols like IIC, SPI, UART, CAN, and LIN enhances its functionality, especially in embedded system projects.

One of the standout features is the memory depth, allowing for detailed signal captures, which is essential for analyzing fast signals over time. The display quality is generally good, contributing to a user-friendly experience when interpreting waveforms. Furthermore, with the option for a USB AWG module, it adds even more flexibility for users who may need signal generation capabilities alongside their measurements.

The weight of 6.6 pounds may make it less portable than some users would prefer, particularly for those who might need to transport it frequently. Additionally, while it caters well to common protocols, it may lack specialized decoding for less common protocols, which could be a limitation for some advanced users. The model has been in the market since 2017, so while it remains relevant, it may not have the latest technology features found in newer models.

The SDS1104X-E digital oscilloscope is a well-rounded instrument for those who require a reliable tool for everyday signal analysis in an industrial, scientific, or educational setting. It balances features and performance effectively, although potential users should consider their specific needs, especially regarding portability and protocol decoding capabilities.

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.