Universal Car Auto Tools Oil Accurate Quality Check Pen Brake Fluid Tester g Gw

ITEM NAME:Universal Car Auto Tools Oil Accurate Quality Check Pen Brake Fluid Tester g Gw.1PCS brake fluid tester. 1, the green LED lights = water content in the brake fluid H2O <1.5%, brake fluid qualified. 3, the red LED lights = water content in the brake fluid H2O> 3%, can not continue to use the brake fluid needs to be replaced.