3in1 handheld device Combines a digital oscilloscope, an electronic component tester, and a PWM generator in one compact unit for versatile project work. Key capabilities Oscilloscope Bandwidth up to 500 kHz with realtime sampling Voltage measurement capability up to 400 V Component testing and identification Ideal for fast transistor pairing, identifying mixed surfacemount and throughhole components, and initial screening of small batches Automatically identifies and measures NPN and PNP transistors, diodes, dual diodes, and other transistor types PWM and waveform generation Sine form output with 5 internal base waveform options Frequency range 1–10 kHz Amplitude 0–3.3 V with 50% duty cycle Vertical sensitivity 10 mV to 10 V Horizontal timebase range 1 µs to 10 s More waveform data per unit time to improve accuracy Display and power contrast 2.4' TFT display with adjustable backlight for easier reading Fully charges in 1–2 hours using a 5 V, 2 A adapter Builtin 1500 mA battery provides up to 4 hours of operation Status indicators show green when charge is complete and red during charging Form factor and compatibility Handheld pocket design suitable for onthego use and benchtop work Maintains a compact footprint while delivering multifunction capability Practical use scenarios Onthebench component screening: quickly identify transistor types and diode configurations while assembling or repairing circuits. PWM signal development: generate and analyze waveform in microcontroller or power electronics projects to verify timing and amplitude. Field troubleshooting: perform safe voltage measurements up to 400 V and leverage PCassisted data analysis for efficient diagnostics in remote locations.