K Tool International 70120 LED Brake Fluid Tester

Check quality of brake fluid Suitable for DOT 3, DOT 4, DOT 5.1 and for a specific brand of DOT 3 (AC Delco, Pennzoil, Prestone, Motorcraft & Toyota) One 1.5v battery included Purpose of the tester is to examine the quality of the brake fluid, indicated by 5 LEDs Takes 1 second to test the fluid and automatically shuts off after 2 seconds LED Light Indicators: Green: Battery OKAY Yellow: Fluid contains less than 1% water Yellow / Yellow: Fluid contains less than 2% of water Yellow / Yellow / Red: Fluid contains about 3% of water, CHANGE the brake fluid Yellow / Yellow / Red / Red: Fluid contains about 4% of water, DANGEROUS! CHANGE BRAKE FLUID IMMEDIATELY! Not for use with Class 8 Heavy Duty Trucks