Car Brake Fluid Tester For Dot3/DOT4 Battery Liquid Digital Testing 5LED Indicator Moisture Water Compact ,Accurate Battery Tester

Green: Battery OK, i.e.: No Water Contained in the Brake Fluid Yellow: Less than 1% of Water Content in Brake Fluid Yellow/Yellow: Approximately 2% of Water Content in Brake Fluid Yellow/Yellow/Red: Approximately 3% of Water Content in Brake Fluid;