Material: MetalColor: Red YellowSize Chart:19cm/7.48inch Portable: Voltage tester with pen type design, lightweight and compact size, easy to carry.Smart induction tester pen with LCD display and Light, suitable for measurement in various environments Application: Multifunctional measuring tool for Voltage detection, On off testing, Resistance test. Great for checking circuits, fuses, switch and wiring in carsLive and Neutral Wire Identification: This tool is designed to help you quickly distinguish between live and neutral wires, enhancing safe during electrical workAudible and Visual Continuity Detection: Equipped with both sound and light indicators, the B19 ensures reliable continuity testing for efficient troubleshooting NCV Sound and Light Alarm: The non- voltage (NCV) detection function provides an added layer of safe with audible and visual alarms when voltage is detected Package Includes:1 Piece Voltage Tester