HHTEC Brake fluid tester Auto Diagnostic Brakes Testing Tool Calibrated for DOT 3/4/5 with 5 LED Indicator

The brake fluid tester is a perfect digital measuring device to quickly and easily test the presence of water in the brake fluid, specially developed for car workshops. The 5 LEDs show the water content in the brake fluid from 0% to more than 3% in 5 steps. Brake fluid tester can be used for brake fluid of DOT 3/4/5 (Today the original brake fluid is DOT4 + Open the brake fluid reservoir and remove the cap of the tester. Turn on the tester by pressing the up button. The green LED starts to light up. Hold the test sticks up to the plastic for one second in the brake fluid. Then the test result is displayed with the LEDs. The tester switches off automatically after 12 seconds. Battery not included: one 1.5 V, type AAA.