Brake Fluid Liquid Tester Pen with 5 LED Indicators

• Test the car brake fluid quality quickly to check whether it’s qualified, which can remind you to change the brake fluid when necessary to avoid traffic accident
• The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red
• Calibrated for cars using DOT4 and DOT3 brake fluids (But DOT3 is almost replaced by DOT4 because DOT4 has better performance)
• Only takes seconds to know the results,very easy to use
• CE and RoHS approved. Protective cap included.Takes 1 x AAA/1.5V battery (not included)

Package Dimensions: 6.2 x 3.7 x 1.2 inches