ITEM NAME:Brake Fluid Liquid Oil Tester Pen 5 LED Indicator Car Testing Tool for DOT 3/4 * We will arrange.1 x Brake Tester. Green: 0% Water. Battery OK, no water contained in the brake. Yellow/Yellow/Red: 3% of Water. The brake should be changed. Yellow/Yellow/Red/Red: At least 4% of Water. The brake must be changed urgently.
