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Brake Fluid Tester Pen Black (BLUE)
Product Feature The tester can be used as a digital brake fuild tester suitable for detemining brake fluid quality. Developed for professional use in automotive repair shops and in servicing. Quality is tested and indicated on five LEDs in terms of "percent of water in the brake fluid"
operation manuals 1.Slide the clip,install 2pcs AAA batteries 2.Remove the tester cap,press the top button,LED lights green 3.Put the tester pins into the brake fluid,LEDs light and show the moisture range detected 4.Press the top button again to turn it off,clean the pins,replace the cap