[Multi-Functional Measurement]: Our test pens can be used to test AC and DC voltages, resistance, on-off and data hold. If you encounter fog lights do not light up, the horn does not sound, the car does not , the air conditioner does not work and so on you can use it to test easily. [LCD & LED]: This measuring light features a high definition LCD backlit screen. Not only that, it also comes with LED illumination, which can be turned on by long on the bright button. With the double , you can still see clearly even in dim light. [Metal Probe]: The probe end of this test light is made of high quality metal, providing better conductivity than ordinary test lights. The probe can easily pierce wires or connect properly with fuses in the fuse panel or for use in tight areas that are difficult to reach. [Convenient Design]: It uses a tough and flexible wire, and its back cover is equipped with a removable battery compartment, allowing you to easily replace the battery. In addition, it requires one AAA battery, which needs to be purchased separately. The car test pen is an essential tool for diagnosing car faults. It has a measurement range of 0.8V-100V and can be used to test AC and DC voltage, resistance, etc. The high-definition LCD screen is equipped with green backlight and LED lighting, which can be clearly seen even in dim environments. Its metal probe has excellent conductivity and can easily enter narrow areas. It has a convenient design and is equipped with a stretchable spring wire and a removable battery compartment for easy battery replacement. It is small and portable, easy to carry out, and can be placed in your car or tool box for emergency use. This test light is perfect for DIY enthusiasts and professionals, helping you identify car faults without frequent trips to the repair shop. Color: As shown Material: plastic Package Contents: 1*electric tester 1*storage bag 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.