Brake Fluid Tester Pen
- Check the health status of DOT3, DOT4 car brake fluid.
- 5 LED display lights the percentage of moisture content in the brake fluid, as the test results are more accurate.
- Easy to use: Simply power up, dip probe into brake fluid and read results.
- Only takes seconds to see results.
- High quality electrical conductivity mental design, super strong ABS shell, small compact size, easy to carry in pocket.
- Operated by a LR03 AAA 1.5V battery (not included), automatic shutdown after about 15 seconds of inactivity
- PLEASE NOTE: Please use clean water to clean after the test, otherwise the brake fluid may corrode the test pen.