AUTOOL AS502 Car Brake Fluid Tester For Water Content Testing

The AUTOOL AS502 is a handheld brake fluid tester for checking the water content percentage in DOT3, DOT4, and DOT5.1 brake fluid. It combines pressure boost detection, normal and expert test modes, a 260mm flexible probe, and a 2.8-inch backlit LCD screen to help users judge brake fluid condition before replacement. Review the brake-fluid type, battery, test interval, probe cleaning, and storage notes before using the AS502 brake fluid tester. AS502 focuses on fast brake fluid water-content testing with pressure boost detection, two test modes, a flexible stainless-steel probe, comfortable handheld control, and a readable backlit screen. AS502 offers two detection modes. Select the correct mode according to the brake fluid type or supported DOT4 brand before testing. AS502 uses 6V battery power, a 2.8-inch display, 10-second response, pressure boost detection technology, and a 260mm 304 stainless-steel probe hose for brake fluid water-content checks. Install batteries, clean the probe, select the correct brake fluid type, immerse the probe, and start the test. The screen displays the water content percentage and replacement status. Key features • Water Content Test: Checks brake fluid moisture to judge replacement need. • LED Readout: The display gives a quick visual result during inspection. • Brake Fluid Support: Works with common brake-fluid standards used in vehicles. • Product: AUTOOL AS502 Brake Fluid Tester • Testing Object: Brake fluid water content percentage • Detection Technology: Pressure boost detection technology