For DOT3 DOT4 Car Brake Fluid Liquid Oil Tester Pen 5LED Indicator Testing Tools

Testing DOT 3, DOT4, DOT5 brake fluid. Test DOT 3, DOT4, DOT5 brake fluid. Ready for Test: Unscrew the brake fluid reservoir, and pull off the cap of the Brake fluid tester. Dip the test probes into the brake fluid up to the plastic rim of the device.

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