A memory depth of 8M to 10M points allows for long-duration captures without losing detail.
I’d be happy to help you develop a feature about an — but just to clarify, there’s no widely known commercial or historic oscilloscope model with that exact name. It sounds like it could be: oscilloscope 251
If you've been searching for an "oscilloscope 251," you've likely encountered two very different worlds of engineering: the vintage analog charm of the and the modern, high-tech portability of the B&K Precision 2510 Series A memory depth of 8M to 10M points
Frequency, Period, Totalize, and Pulse Width. part per million (ppm) per year, thanks to
part per million (ppm) per year, thanks to a temperature-compensated, crystal-controlled oscillator. 1 M Ωcap omega (Channel A), 50 Ωcap omega (Channel B).
2 channels, 120MHz bandwidth, and a built-in signal generator—all in a pocket-sized form factor.
Many modern "251" class devices are 3-in-1 or 4-in-1 , combining an oscilloscope, multimeter, and waveform generator.