FNIRSI 1013D 100MHz Touchscreen Digital Oscilloscope

A 100MHz bandwidth with 1GSa/s sampling rate puts this oscilloscope meaningfully above entry-level handheld scopes, into a range genuinely usable for debugging digital logic signals, switching power supplies, and other higher-frequency work that a 20-30MHz scope would struggle to capture cleanly. Dual channels let two signals be compared simultaneously - checking a clock against a data line, or an input against an output - which single-channel scopes can't do at all.

A large 7-inch 800x480 touchscreen makes navigating settings and reading waveforms far easier than the small screens on cheaper handheld scopes, and a one-button AUTO function quickly finds a stable trigger on an unfamiliar signal without manual timebase and trigger hunting. Built-in FFT analysis lets a signal's frequency content be examined directly on the device, and 1GB of onboard storage holds up to 1000 saved screenshots and waveforms for later review or documentation.

Common uses are serious hobbyist and professional electronics debugging needing real bandwidth and dual-channel comparison, educational settings teaching oscilloscope fundamentals with a genuinely capable instrument, and field service work wanting a portable scope with real bench-class performance.