Description: 【LCD Display】: This voltage tester features a LCD backlight display, allowing you to easily distinguish between high and low voltage levels with red indicating voltage and green indicating low voltage 【Built in Flashlight】: Equipped with a convenient flashlight function, simply press the S key for 3 seconds to illuminate your workspace, making it easier to measure in dimly lit environments 【Versatile Screwdriver Design】: The tester includes a removable cross/slotted double head screwdriver made from hardness material, ensuring durability and sensitivity for various electrical tasks 【Efficient Wire Conduction Testing】: Quickly switch to on off mode by pressing the S key; the screen displays 'O' with a buzzer sound if the line is intact, or 'OL' without response if there's a break in the line 【Comprehensive Wire Identification】: Easily identify live and wires by inserting the pen into an outlet; red screen illumination with an alarm indicates a live, while green without an alarm signifies a wire Specification: Material: PP,Electronic components   Size Chart: 16.1cmx3.12cm/6.34inchx1.23inch Package Includes: 1 Voltage Tester   Note: Please allow slightly errors due to manual measurement and different monitors.