NCV DETECTION: In NCV mode, move the instrument’s NCV sensing probe gradually closer to the area being tested. When the instrument detects a weak electric field signal, the green backlight lights up, and the screen displays “—L”When the instrument detects a strong electric field signal, the red backlight lights up, and it emits a quick beeping sound, while the screen displays “–H”

AUTO RANGE: When the instrument is set to AUTO mode, it automatically identifies measurement signals for voltage, resistance, and continuity.

LOW BATTERY INDICATION: When the battery voltage is below the normal operating level, the top right corner of the screen will display symbol to remind the user to replace the battery.

LED FLASHLIGHT ILLUMINATION: The LED flashlight allows for close inspection of contact points, making it convenient for probe measurements.

AUTO SHUTDOWN: The instrument automatically powers off within 15 minutes of no operation to conserve battery power.

HIGH-RESOLUTION LCD DISPLAY: The display provides clear and accurate measurement data and function symbols.