3-72V wide test range: car test light is upgraded to 3-72V voltage test range, which is than most test lights on the market. This automatic circuit tester is Perfect for checking the circuits of vehicles such as car headlights, taillights, fuses, car batteries, and more. It can also be used to measure other 3-72V DC . LCD Backlit Digital Display and LED Indicator: The circuit tester combines an LCD digital backlit display with an LED red/green indicator light design, making it easier to read the voltage value of the screen and distinguish the positive and negative poles. Extended spring wire and anti-lost probe cover: Compared with ordinary wires, the car light tester is equipped with high-quality spring wire that can be stretched to 141.74 inches, making maintenance and diagnostic work more portable, convenient and faster. Instead of constantly searching for a suitable surface, you can test from the front to the rear of your car. In addition, the integrated design of the anti-loss cover ensures that no matter where you go, it will not be punctured and lost. Overload warning and buzzer alarm: This car light tester will make a buzzer sound when used, and the light in front of the handle makes it easy to identify. In addition, this test lamp also has an over-voltage reminder function. When you use it on 72V DC, the LCD screen will display "OL" and the red LED light will . Please stop testing immediately! Colour:As Shown Material:ABS Package Contents: 1 set x test light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.