Check the attenuation switch on your probe (1X or 10X). For most digital work, 10X is preferred as it increases the input impedance and protects the scope from higher voltages. Periodically check the Hanmatek Official Support
The display is a living map. Waveforms roll in like tides — crisp square waves snapping like a metronome, delicate sine curves gliding like wind over water, jagged pulses that feel like lightning in miniature. Colors are purposeful here: greens tell you the steady; yellows warn of change; blues explain nuance. Every hue is a note in the manual’s gentle lesson about reading a signal’s mood. hanmatek dos1102 manual
: Pulls up automated readings like RMS voltage, peak-to-peak, and frequency. Check the attenuation switch on your probe (1X or 10X)