[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