[Quality] After extensive research on similar products on the market, the new brake fluid pen tester is the perfect tool for upgrading. Readings are more accurate during testing. Its casing is made of high-quality nylon, unlike ABS. This product is more corrosion-resistant and has a longer lifespan. (Battery not included) [LED Light] Red indicates the need for immediate brake fluid change, green indicates good condition, and yellow indicates normal condition, but changes in water content are clearly displayed by the LEDs. [Brake Fluid] The brake fluid detector works instantly to check the brake fluid quality and provides ready-to-use results on a color LED screen. The quick brake fluid quality test measures the water content of the brake fluid to assess vehicle safety. You don't have to wait long for the results. The result only appears after a few seconds of immersion of the pen in the fluid. [Test Vehicle] This brake fluid tester is suitable for 4S shops and car owners. It is simple, accurate, and fast. [Brake Fluid Detector] Brake fluid absorbs moisture. Over time, the moisture is gradually absorbed. You should change the brake fluid regularly based on the test results.
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