2PCS Brake Fluid Liquid Tester Pen Hydraulic Fluid Liquid Oil Moisture Analyzer Car Diagnostic Testing Tool Brake Fluid Liquid Tester Pen with 5 LED Indicators

High quality: nickel plated metal probe, oil and oxidation resistant, not easy to corrode. The shell is black matte plastic, better anti slip and good texture of the body., Safe driving: 5 LED indicators show the percentage of water in the brake fluid. This product can quickly detect the health of the car's brake fluid, provide you with more accurate test results, and remind you to replace the brake fluid., Convenient and quick: The brake fluid tester is easy to use, press the button, insert the test pen, the indicator is accurate to 1 percent and receive the result within seconds., Suitable for: Testing the moisture content in DOT-3, DOT-4, DOT-5.1 brake fluid. Very convenient for personal use, widely used in personal workshops, repair shops and dealer workshops., Easy to carry: No cable connector design, small size, light weight, easy to carry and use. To save electricity, this test pen will automatically turn off the power after 20 seconds each time to save electricity.