Key features and benefits Three trigger modes for flexible operation: normal trigger, auto trigger, and single trigger to match different diagnostic needs and capture scenarios. Portable handheld design for convenient use in the , in the car, or on the workbench. Clear visual display: 2.4 inch LCD with 320x240 resolution to show waveform information clearly and quickly. Reliable test output: square wave output with 3.3 V amplitude, selectable frequency from 0 to 80 kHz, and duty cycle from 0 to 100 percent for versatile circuit testing. What it offers Trigger options that adapt to your workflow, enabling steady waveform viewing, automatic updates, or singleshot captures for sporadic events. A compact, userfriendly instrument that fits easily in a toolbox or glove compartment and is simple to operate for quick diagnostics. A readable display that helps you interpret measurements without squinting or zooming, reducing test time. Specifications snapshot Display: 2.4 inch LCD, 320x240 resolution Trigger modes: Normal trigger, Auto trigger, Single trigger Output: Square wave, 3.3 V, 0–80 kHz, 0–100% duty cycle Suitable occasions Car : check engine sensors, ignition circuits, and other control signals on the go. Home appliance : diagnose control boards, power electronics, and sensor inputs in devices such as refrigerators, washing machines, and microwaves. DIY study and electronics troubleshooting: learn waveform behavior, test circuits, and validate designs in a compact, portable package. 23 practical use scenarios Scenario 1: In a car, you need to verify a sensor signal. Use the handheld oscilloscope in normal or auto trigger mode to observe the sensor output waveform, confirm proper frequency and duty cycle, and pinpoint faulty wiring or sensor issues. Scenario 2: At home, you are inspecting a washing machine control board. Use the device's square wave output to simulate a reference signal and compare it with the board's response to identify malfunctioning channels or connectors. Scenario 3: During a DIY electronics project, you want to study a circuit's timing. Toggle between trigger modes to capture recurring patterns or singleshot events, and read the waveform on the 2.4 inch display for quick analysis. Notes The description maintains the original device capabilities: three trigger modes, square wave output with 3.3 V amplitude, 0–80 kHz range, 0–100% duty cycle, and a 2.4 inch 320x240 LCD, in a handheld form factor for versatile use.