Features:Brand new and high qualityThis diagnostic tool is made of durable plastic and works in temperatures ranging from -20 to 60.Suitable for car enthusiasts, mechanics, and anyone who wants to ensure their brake fluid is in top condition.Use it at home or in the garage to test your brake fluid regularly and prevent accidents caused by worn-out brake fluid.With its easyto-use design and compatibility with multiple types of brake fluids, this tester pen is a must-have for any responsible driver.This car brake diagnostic testing tool can check the health-status of DOT3, DOT4, DOT5.1 car brake fluid, helps-you to avoid accidents, provide you with a comfortable and safe driving.Specifications: Material:PlasticSize:As Picture ShownType: automobile fault diagnosis instrument: 12VWorking temperature: -20-60Color:BlackPackage Includes: 1x Brake Fluid TesterNote: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thanks for your understandings.