Brake Fluid Tester 5 LED Car Vehicle Auto Automotive Testing Tool for DOT3/DOT4 without battery

Description

Brake Fluid Tester To Check Fluid Quality: Press the button for power on, green LED will light up. Insert the tester into reservoir for a second , then the results will be indicated correctly by LEDs. Auto power off . Indications: 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; The Brake Fluid Should be Changed Yellow/Yellow/Red/Red: at least 4% of Water Content in Brake Fluid; The Brake Fluid Must be Changed Urgently, Extreme Danger .