- Resistance measurement and continuity test: Uses red and black probes to connect to either end of a resistor or circuit; the display shows the measured resistance value. For continuity tests, the device emits an alert sound when circuits are connected and remains silent when open, aiding troubleshooting and ensuring circuit integrity. - Large HD display: 33x25 mm (1.3 x 0.98 inch) HD screen with a bright white backlight that can be turned on with a single button press. Long pressing the button activates the built-in flashlight for additional visibility in low light conditions. - Convenience features for everyday use: Data hold, auto shutdown after 15 minutes with an option to disable, low battery indicator, backlit display, and built-in flashlight. Suitable for amateurs, car owners, and homeowners. - Clear visibility and usability: The large HD display provides clear readings at a glance; backlight and flashlight enhance visibility in any environment. - Use scenarios: 1) Troubleshooting automotive wiring and connectors by checking resistance and continuity. 2) Verifying circuit integrity in home electrical projects. 3) Evaluating electronic components in DIY or workshop settings.