10 Best Digital Oscilloscopes 2025 in the United States

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.

The Fluke 123B Industrial ScopeMeter is a sturdy and portable handheld oscilloscope designed mainly for industrial fieldwork. With two input channels and a 20 MHz bandwidth, it suits basic to moderate waveform analysis, especially for troubleshooting electrical signals in machinery and equipment. This model focuses on simplicity and durability rather than high-end lab capabilities. Its true-RMS digital multimeter functionality adds value by allowing precise voltage and current measurements alongside waveform capture.

The Connect-and-View and IntellaSet Auto Reading technologies help users quickly get accurate readings without deep oscilloscope expertise, which is excellent for technicians needing fast diagnostics. The seven-hour battery life with rechargeable Li-Ion battery is convenient for extended field use. The relatively low bandwidth means it might not meet demands for detailed signal analysis or complex triggering scenarios. The display details are minimal, likely adequate but not advanced.

Weighing just over 3 pounds and designed as a handheld unit, it’s portable but not pocket-sized. This device fits well for industrial technicians who prioritize ease of use, durability, and basic oscilloscope functions in the field, but it is less suitable for users needing high-speed sampling, deep memory, or advanced triggering features.

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.