Buy Used | Oscilloscope

Check for dead pixels on LCDs or "screen burn" on older analog CRT displays. Top Used Models for Hobbyists (2026) Based on current market availability and community favor:

Professional refurbished units from manufacturers like Keysight are calibrated and often come with a warranty. Essential Pre-Purchase Tests

Connect a probe to every channel and attach it to the built-in probe compensation output (usually a small metal tab on the front). You should see a clean, steady square wave. buy used oscilloscope

When looking for a used unit, prioritize these specifications based on your needs:

If buying locally, perform these checks to verify functionality: Check for dead pixels on LCDs or "screen

Deeper memory allows you to capture longer time windows while maintaining a high sample rate, which is crucial for finding intermittent glitches.

Look for a rate at least 2.5 to 10 times your bandwidth for accurate waveform representation. You should see a clean, steady square wave

Most modern digital oscilloscopes (DSOs) run a self-test on startup; ensure it passes without error codes.