Brake Fluid Liquid Tester Pen, DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Car Diagnostic Testing Tool with 5 LED Indicators, Car Accessories Hydraulic Fluid Liquid Oil Moisture Analyzer

[Superior Material] : The brake fluid liquid tester pen is made of brass metal, resistant to oil, corrosion and oxidation. The shell is made of high-quality black matte plastic with good anti-slip performance and comfortable feel. The measurements are fast and precise, helping you to get a clearer picture of the changes in moisture in the brake fluid, [Safe driving] : Our car diagnostic testing tool with 5 LED Indicators can quickly check the health of your car brake fluid, provide you with accurate detection results, and remind you to replace the brake fluid in time, for your travel protection. This brake fluid liquid tester is widely used in workshops, repair shops and dealer workshops, [Easy to Use] : The hydraulic fluid liquid oil moisture analyzer is very simple to operate. Just press the button, insert the tester into the brake fluid, and after a few seconds, the result is displayed via a signal indicator. According to the color to determine whether the brake fluid needs to be replaced, With our car diagnostic testing tool, even people can test your car's brake fluid, [5 LED Lights] : This auto brake diagnostic test tool with 5 LED indicators to show the percentage of moisture in the brake fluid. Red means that the brake fluid needs to be replaced immediately, green means that it is in good condition, and yellow means that it is in good condition, but the timing of replacement needs to be considered, [Easy to carry] : The DOT 3 DOT 4 DOT 5.1 brake fluid liquid tester pen is small in size and light in weight, which is convenient for you to carry around and link your brake fluid at any time. It is your essential car diagnostic testing tool