Professional: The brake fluid tester, with a high-precision sensor, has accurate detection results, can effectively detect the condition of the brake fluid, and provide you with a safer driving guarantee. > 3 LCD Displays: With a high-resolution 3-color LCD display, you can understand the details and test results more clearly. DOT3 indicates purity is less than 1%, DOT4 indicates condition is less than 2%, and DOT5 indicates condition is greater than 4% and needs replacing. Easy to use : There are anti-slip patterns on both sides, which can be operated with one hand. The operation is simple, bringing you more convenience, supporting multi-fluid testing, and better meeting your needs. Perfect replacement: replaceable battery, more convenient and faster to use, universal probe, sturdy , corrosion-resistant and long service life Audible alarm: With an audible alarm design, when the moisture content of the brake fluid exceeds the standard, an alarm will be issued to replace the brake fluid. brake. Size: 156mm*55mm*24mm Quantity: 1 piece Color: as the picture