Description: 【Versatile Brake Fluid Tester】: This brake fluid tester is suitable for most vehicles. It can check the condition of DOT3, DOT4, DOT5.1, ENV4, ENV6 brake fluids as well as most synthetic brake fluids. Ideal for personal workshops, repair factories and dealer workshops. 【User Friendly Design】: Brake Fluid Tester is made from pp with a good texture. The control panel is simple and easy to use. 【Advanced Features】: This brake fluid tester equipped with a high sensitivity probe and sound alarm that instantly displays results, alarm switch alerts you when brake fluid emits an excessive amount of water indicating that it needs replacement. 【LCD Display】: The brake fluid tester with LCD color display screen, backlit switch allows easy reading in sunlight or at night. 【Easy Using】: Simply press the oil selection button (if needed), choose the oil type, and immerse the test probe into the oil to be tested, ensuring it's dipped into the metal probe head. Press a button immediately and wait for the device to display test results. Specification: Power: 2 AA batteries (not included) Size Chart: Package Size:15cmx25cmx4cm/5.91inchx9.84inchx1.57inch Package Includes: 1 Piece Brake Fluid Tester Note: Please allow slightly errors 1-2cm differences due to manual measurement.