Features: Precise readouts & clear digital display bright led display shows highly clear readings in any lighting condition, 0.1v resolution gives you reliable indication and shows you the voltages number easily & quickly. Quick detection & extensive use auto circuit tester helps you to quickly test car battery voltages and diagnoses issues in 3v-48 v/3v-120v systems, including alternator tester functionality of car/truck/suv/boat charging systems. also to inspect circuit tester integrity of head lights, taillights, turn signal circuits, faulty sockets, fuses connections and more. Long probe stainless steels probe for piercing insulation also for hard to reach tight areas. Extended spring wire & large alligators clip quality materials long spring wire increases flexibility to access across broad areas when testing. attaching with large alligators clip for easy single hand operation, which is boosting the efficiency for car battery capacity checks and beyond. Safe construction this voltages tester pen adopts ergonomic handle for comfort and safe grip. constructed with premium abs body with lucency, shatters proof and full of durability. ensuring reliable battery meter and circuit analysis for safe operation, making them essential tool in electrical troubleshooting. Specifications: Materials:Mixed Type:01,02,03,04 Package Includes: 1Piece Automotive Test lights note: Please allow 1-2cm errors due to manual measurement. Due to the differences betweeen different monitors,the picture may not reflect the actual color of the item.