Powerbuilt Universal Brake Fluid Tester Pen with LED Indicator for Water Content, Calibrated for DOT3, DOT4, DOT5.1 Liquid Brake Fluid, Fast, Easy

Easy: Simply Power it On, Dip the Testing Probe into Your Brake Fluid Reservoir and Check the LED Indicators for Water Content in your DOT3, DOT4 and

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Easy: Simply Power it On, Dip the Testing Probe into Your Brake Fluid Reservoir and Check the LED Indicators for Water Content in your DOT3, DOT4 and

Powerbuilt Universal Brake Fluid Tester Pen with LED Indicator for Water Content, Calibrated for DOT3, DOT4, DOT5.1 Liquid Brake Fluid, Fast, Easy

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