Brake Fluid Tester High Precision Portable Use Safety Quality

Features Powerful function, simple operation; accurate measurement, safe use; Detect all brake fluid; with automatic shutdown function; Can test DOT3/4/5 brake fluid. Product Instructions Green: power OK/no water; Green/yellow: moisture content is less than 1%; Green/yellow/yellow: water content close to 2%; Green/yellow/yellow/red: the water content is close to 3%, it is recommended to replace the brake fluid; Green/Yellow/Yellow/Red/Red: The water content is higher than 4%, dangerous, and the brake fluid must be replaced immediately. Note: 1 .AAA battery, open the battery cover according to the direction indicated by the arrow on the test pen. 2.If the green LED light does not light up after pressing the power button for a long time, you need to replace the battery; 3. After each use of the test pen, please wash the test probe with clean water; 4. Please do not expose the brake fluid to the air for a long time, because the brake fluid has strong water absorption. Preparation before