Advanced Testing Technology: This brake fluid tester utilizes integrated circuitry to accurately measure moisture content in brake fluid by assessing electrical resistance. Easy-to-Read LED Indicators: Equipped with three LED lights to provide clear readings on brake fluid quality: Green LED: Indicates moisture content is below 1.5%, meaning the brake fluid is in good condition and the battery is also functional. Yellow LED: Signals moisture levels between 1.5% and 3.0%, indicating a low percentage of water. It’s advisable to change the brake fluid within 6 months. Red LED: Alerts when moisture content exceeds 3.0%, indicating that a brake fluid change is necessary. User-Friendly Design: Powered by an included AAA 1.5V battery, making it convenient and ready to use right out of the box. Essential for Vehicle Maintenance: Ideal for mechanics and DIY enthusiasts to ensure brake fluid quality, promoting safety and optimal vehicle performance.