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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.

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