Features: Multifunctional Testing: This voltage testing pen serves multiple purposes, allowing for live and null wire judgment and home induction testing, making it suitable for a wide range of household appliances. Non-Contact Detection: With its non-contact voltage testing and intelligent sound an alarm sensor, this pen provides a safe and efficient way to detect voltage, ensuring user safety during testing. Sensitivity: The voltage tester pen features sensitivity electric testing, ensuring accurate and reliable results for various electrical applications. Intelligent Alarm System: Equipped with an intelligent sound an alarm sensor, this pen provides an intuitive and effective alert system for voltage detection, enhancing user convenience and safety. Versatile Application: Suitable for a wide range of tasks, this voltage testing pen is designed for multifunctional use, making it an essential tool for both professionals and diy enthusiasts. Specification: Length: 141mm Color: Yellow Note: Due to the screen lighting effect, the actual color of the product may be slightly different. Due to manual measurement, please allow size error. Include: 1*Voltage Testing Pen Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.