DSO-TC3 multimeter combines a digital oscilloscope, electronic component tester, signal generator, continuity tester, voltage tester, temperature and humidity measurement, and infrared decoding in a single instrument. - Oscilloscope features: real-time sampling rate of 10ms/s, bandwidth 500KHz, test voltage range up to 400V. Full trigger options auto/normal/single, with one-key to display waveforms. - Transistor and component tester: auto identifies and measures transistors including NPN, PNP, N-channel and P-channel field effect transistors, junction field effect devices, diodes, dual diodes, thyristors, and also tests resistors, inductors, capacitors and other passive components. - Signal generator: can display 6 waveforms, output frequency adjustable 1-100KHz, output voltage adjustable 0-3.3V, duty cycle adjustable 1-100%. - Additional functions: continuity test, voltage test, temperature and humidity measurement, infrared decoding for remote signals. Use scenarios - Debug and develop electronic projects: capture and analyze signals with the oscilloscope, verify PWM outputs, test and identify faulty transistors or diodes with the tester, and validate component values on the fly. - In-field repair and diagnostics: check power rails and signal paths, confirm continuity, identify defective passives or transistors, and decode infrared remote signals for devices. - Education and component characterization: identify and measure a range of passive and active components, learn waveform behavior, and compare measured values against expected specs.