Features 1Important tool: Brake pressure was transmitted by brake fluid, the pressure transmission will out of function once brake fluid including too much water. 2Function: The brake fluid tester help us do current maintenance, make sure we drive in safety condition. 3Flexible Probe: Brake fluid tester with 250mm goose neck probe provides flexibility of detection. 4Oil Resistant: Chromed detector resistant to oils and oxidation; 2in LCD display with backlit provide intuitive interface. 5High Accuracy: Size of small, perfect handfeeling. Buzzing and red light double alarm system, test result is clear absolutely. 6Perfect Fitment: Universal fit for most vehicle. High precision to test DOT3, DOT4, DOT5.1 brake fluid. Specification Item Type: Brake Fluid Tester Material: Plastic Battery Model: 6F22 9V battery (excluded) Application: Universal fit for most vehicle. High precision to test DOT-3, DOT-4, DOT-5.1 brake fluid. Package List 1 x Tester 1 x Manual