Brake Fluid Tester with 5 LED Indicators Auto Brake Diagnostic Testing Tool Hydraulic Fluid Liquid Oil Moisture Analyzer Auto Brake Diagnostic Testing Tool for DOT3 DOT4 Brake Fluid

How to Use: 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 battery 2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester 3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid 4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly 5. The tester will automatically power off after 12 seconds of inactivityv What to Do: The LED lights will indicate the percentage of water in the brake fluid: - Green: No waterv - Green/Yellow: Less than 1% of water - Green /Yellow/Yellow: Approx.2% of waterv - Green/Yellow/Yellow/Red: Approx.3% (Brake fluid should be changed) -Green/Yellow/Yellow/Red/Red: Approx.4% (Brake fluid must be changed urgently!) Please Note: The brake fluid tester is calibrated for DOT4 and DOT3 brake fluids, and DOT4 is used in most cars produced since 2006 Replace the battery if the green LED indicator no longer lights up after you press the button Wash the test probe with tap water after every usev In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic Package： 1 x brake fluid tester(Battery Not Included)

• Easy test the car brake fluid quality quickly to check whether it's qualified, remind you to change the brake fluid in time to make you more comfortable and safe.
• Press the button , Insert the tester into reservoir for one second then the tester result will be correctly indicated by LEDs.Repress the button for power off.
• The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red
• Calibrated for cars using DOT3, DOT4, DOT5.1 brake fluid brake fluids
• Small size ,can be take it in pocket, Protective cap included.Takes 1 x AAA/1.5V battery (not included)