Brake Fluid Liquid Tester Pen,1PC DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Car Diagnostic Testing Tool with 5 LED Indicators, Hydraulic Fluid Liquid Oil Moisture Analyzer

Brake Fluid Liquid Tester Pen,1PC DOT 3 DOT 4 DOT 5.1 Brake Fluid Liquid Tester Pen, Car Diagnostic Testing Tool with 5 LED Indicators, Hydraulic Fluid Liquid Oil Moisture Analyzer

• [Compact & Energy-Efficient]: It only takes seconds to check automobile brake fluid quality. Simple to use for new car owners. Its small size and portability make it an essential vehicle tool.
• [Premium Material for Durability]: Our brake fluid test pen is the result of extensive research on market products.
• [Versatile Application]: The new brake fluid moisture tester can measure the moisture percentage of DOT3, DOT4, DOT5.1, ENV6, and ENV4 brake fluids quickly and easily.
• [Five LED Indicators]: Five LED lights in green, yellow, and red indicate the water percentage in brake fluid. The colors range from green (0%) to green-yellow-red (>4%), helping you quickly assess and decide whether to replace the brake fluid.
• [Simple Setup & Customization]: Press and hold the top button to switch between brake fluid types. The default is DOT3. The LED lights up sequentially to indicate each type.