1.Efficient and Versatile: By using non contacting inductive measurement, this voltage tester provides a safer and faster way to detect voltage levels in cables, junction boxes, sockets, fuse boxes, and more 2.Efficient Circuit Detection: Made with quality ABS material and humanized design, this non contacting voltage tester lets you confirm circuit energy with just a touch. No need to plug in and with specific sound and light signals emitted through the red LED light and buzzer, it's easy to use and sturdy 3.Double Mode Design: Our non contacting voltage tester boasts a double mode design with flashlight mode, making it for use in dimly lit areas, or situations with limited mobility. 4.Increased Work Efficiency: By emitting a beep sound and red flashing LED, this non contacting voltage tester signals the presence of voltage when its tip is close to the cord, allowing users to precisely locate the fault point of cables, fuses, and other electrical components.