?[Voltage Display LCD Screen] Equipped with a backlit LCD screen, easy to read in various lighting conditions ?[Smart Circuit Board] Delivers high performance with enhanced stability for a reliable testing experience ?[Built-In Flashlight] Features a flashlight for clear visibility of measured objects in dim environments ?[Auto Power-Off] Automatically shuts off after 3 minutes of inactivity to save battery life ?[Flathead Screwdriver Tip] Designed with a slotted screwdriver tip for added convenience during use ?[Clip Design for Portability] Designed with a convenient pen clip for easy carrying Specifications: ?AC voltage range: 12V-300V ?Zero and fire wire distinction: Supported ?NCV voltage sensing: Supported ?Line breakpoint search: Supported ?Slotted screwdriver head: Yes ?Alarm mode: Sound and light alarm ?Automatic shutdown: Automatic shutdown after 3 minutes of no operation ?Battery: AAA battery*2 (not included) ?Battery undervoltage indication: When the battery is not enough to maintain operation, the screen will display 0 and then shut down ?LCD backlight screen: Supported ?Flashlight lighting: Supported ?Material: ABS/chrome vanadium steel bit Package included: ?1 x Voltage Test Pen ?1 x English User Manual