Feature 1Sound Alarm:When the moisture content of the brake fluid is detected to exceed the standard, alarm will be sounded to replace the brake fluid. 2Non-slip Design:Fit for one hand operate, easy to use. 3Removable Battery Cover:Easy to replace the batteries, energy save design. Features: Sound Alarm:When the moisture content of the brake fluid is detected to exceed the standard, alarm will be sounded to replace the brake fluid. Non-slip Design:Fit for one hand operate, easy to use. Removable Battery Cover:Easy to replace the batteries, energy save design. High ResolutionScreen:Clear diplay the test result, no matter in glare environment or dark environment. Universal Probe:Durable and can be twisted, convenient and flexible. Support multiple types of brake fluid in one tool:DOT3, DOT4, DOT5.1. Specifications: Color:Gray and Black Material:ABS Supply Voltage12V Power Supply:2 * AAAA Battery Working Temperature-20-50 Test Range: DOT3, DOT4, DOT5.1 Package Weight: 150g Package Size: 25 * 10 * 3cm Package list: 1 * Brake Fluid Tester Package List 1 * Brake Fluid Tester