4-inch TFT color display provides clear visibility and easy navigation, making it simple to read measurements in various lighting conditions. Suitable for professional mechanics and DIY enthusiasts. Multimeter modes include DC voltage, resistance, and diode/continuity tests. Switch between modes with a long press for fast, straightforward diagnostics of vehicle circuits. Extended 6m cable lets you reach any area of the vehicle without hassle. The built-in flashlight illuminates dim workspaces for added convenience. Safety first with a quick self-test function and short circuit protection to help ensure safe operation when diagnosing automotive electrical systems. Use scenarios: - Check the car battery and charging system by measuring DC voltage and verifying diode paths in charging circuits. - Inspect wiring harnesses, fuses, and connectors by testing resistance and continuity across circuit paths. - Diagnose hard-to-reach areas under the dash or in the engine bay, using the long cable and flashlight to access and illuminate the workspace.