Feature:1. High Precision Safety Driving --- High quality probe privde high accuracy result, remind you do current maintenance and escort your driving.2. Universal Fit --- Universal Probe common fit for most vehicle using DOT4, DOT3, DOT5 brake fluids/liquid/oil.3. Easy Comfirm --- 3 Color LED Display display 5 Level Brake Fluid Status, easy and clear read under sun or night. Never limited by the enviroment.4. Instant Result --- Only takes seconds to know the results,test the car brake fluid quality quickly to check whether it\u0027s qualified, very easy to use.5. Scope of Application --- It\u0027s extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.Specification:Features:High Precision Safety Driving --- High quality probe privde high accuracy result, remind you do current maintenance and escort your driving.Universal Fit --- Universal Probe common fit for most vehicle using DOT4, DOT3, DOT5 brake fluids/liquid/oil.Easy Comfirm --- 3 Color LED Display display 5 Level Brake Fluid Status, easy and clear read under sun or night. Never limited by the enviroment. Instant Result --- Only takes seconds to know the results,test the car brake fluid quality quickly to check whether it's qualified, very easy to use.Scope of Application --- It's extremly convenient for personal use and broadly applied in individual workshops, repair factories and dealer workshops.Specification:Name: Brake Fluid TesterMaterial: ABSVoltage: 12VColor: BlackDisplay : Three-color LED light displayBattery : 2 * AAA BatteryTest Range : DOT3DOT4DOT5Be Applicable : All vehiclesUsing Temperature: -20-60Item Size: 55 * 25 * 19mm5 LED STATUS EXPLANATIONRed: Brake oil with at least 4% water contentRed: Brake oil with about 3% water contentYellow: Brake oil with about 2% water contentGreen/Yellow: Brake oil with less than 1% water contentGreen: Without water good conditionLED Display Explanation:Green: The current test brake oil is in good condition.Green/ Yellow: Brake oil with less than 1% water content, Brake oil performance is good, you can use it with confidence.Green/Yellow/Yellow: Brake oil with about 2% water content, still able to work.Green/ Yellow/ Yellow/Red: Brake oil with about 3% , It is recommended to replace the brake fluid.Green/ Yellow/ Yellow/Red/Red: Brake oil with at least 4%, replaced immediately.Usage:1. Turn on the brake fluid tester by pressing the button on top. A green light should light up. If the light does not come on, it may be time to change a battery2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly5. The tester will automatically power off after 12 seconds of inactivityPacking List: 1 * Brake Fluid Tester PenPackage List:1 * Brake Fluid Tester Pen