Description: For checking the moisture content in brake fluid. LED light indicators show percentage of water in the brake fluid. Suitable for DOT3 / DOT4 testing. Only takes seconds to show the results. Automatically power off. Specification: Operated by a LR03 AAA 1.5V battery(BATTERY IS NOT INCLUDED). Directions for using: 5 LEDs indicating the water % in the brake fluid 0% LED: Battery is OK,and there is no water content in brake fluid 1% LED: Water Content, H2O=1%, brake fluid is above standard 2% LED: Water Content, H2O=2%, still can use it 3% LED: Water Content Water Content, H2O=3%, brake fluid should be changed 4% LED: Water Content Water Content, H2O=4%, brake fluid must be changed Package Includes: 1 Piece Brake Fluid Tester
