Multi-function design for electronic DIY, appliance repair, car repair, equipment debugging, and scientific research. Measures up to 12 parameters: VPP, VP, Vmax, Vmin, Vavg, Vrms, Frequency, Duty+, Duty-, Time+, Time-, Period. High-definition screen 2.4-inch color TFT-LCD display with 320 x 240 resolution for clear waveform viewing and parameter readouts. Mini size and portability Ultra-small form factor, about 500 g, easy to hold and carry for on-the-go or bench use. Powerful waveform manager One-key screenshot and save; built-in 64 MB storage space, can store up to 2000 sets of waveform data. Use scenarios - Electronics DIY and appliance repair: quickly capture and analyze voltages, frequencies, and duty cycles to diagnose faulty circuits. - Car electrical system diagnostics: inspect sensor and actuator signals to verify proper operation. - Equipment debugging and scientific research: log waveform data for experiments and later review. This device combines a compact size with versatile measurement capability, clear display, and ample onboard storage to support professional and hobbyist workflows.