Brake Fluid Tester Pen with 5 LED Indicators for DOT 3, DOT 4, and DOT 5.1 - Universal Auto Diagnostic Tool

About this item

• 【Quick & Convenient】: The brake fluid moisture tester can widely test the percentage of moisture in DOT3, DOT4, DOT5.1 brake fluid. It can check the health status of your car brake fluid quickly, and remind you to change the brake fluid in time. It's extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.
• 【Package Includes】: You will receive a brake fluid tester, which is suitable for determining brake fluid quality. It is compatible with AAA batteries, but please note that the battery is not included in the package. So you should prepare it by yourself. In order to save power and to prevent corrosion, please take out the battery after the test and clean the detector.
• 【Easy to Use】: The brake fluid tester pen is easy to use with its intuitive design. Simply insert the metal probe into the brake fluid, after a few seconds, the corresponding LED light will light up and display the result. After the test is completed, the test pen will automatically close after 12 seconds.
• 【Premium Material】: This brake fluid tester is made of brass-plated metal, which is resistant to oil, oxidation and corrosion. The shell is black matte plastic, better anti-slip and good body texture. The change of conductivity can be used to determine the change of moisture in the brake fluid.
• 【5 LED Lights】: This device has 5 LED indicators that display the level of moisture in brake fluid. The colors used are green, yellow, and red to show the percentage of water in the brake fluid. Red means replacement is needed right away, green means the brake fluid is in good condition, and yellow means it is acceptable but needs replacing soon.