Multifunctional Voltage Tester Accurately detects AC voltage (12V-1000V) with a digital display for precise readings. Ideal for electricians, DIY enthusiasts, and home users. High Voltage Alarm & Low Voltage Prompt Ensures safety with an audible and visual alert when detecting high voltage. The low voltage prompt helps prevent battery drainage. Break Point & Live/Null Wire Testing Easily locate electrical break points and distinguish between live and null wires for troubleshooting circuits. Built-in Flashlight & Auto Shut-Down Integrated LED flashlight for working in dim environments. Automatic shut-off saves battery life when not in use. Durable & Practical Design Features a screwdriver tip for added functionality. Compact, lightweight, and ergonomically designed for comfortable use.