ITEM NAME:Brake test tool liquid tester Vehicle with 5 LED Indicator for Auto Car C5R7 Brake test tool liquid tester Vehicle with 5 LED Indicator for Auto Car C5R7 1. Turn on the brake fluid meter by pressing the button. A green light should come on. If the light does not turn on, it may be time to change a battery. 2. Unscrew the cap for the reservoir of the brake fluid and remove the cover for the brake fluid tester. 3. Immersion that the test of the probes in the brake fluid and the LED lights will indicate the percentage of water in the brake fluid. 4. The meter will turn off automatically after a few seconds of inactivity. The LED lights will indicate the percentage of water in the brake fluid: Green: none. Green / yellow: less than 1%. Green / yellow / yellow: approx. 2%. Green / yellow / yellow / red: approx. 3% (time to change the brake fluid). Green / yellow / yellow / red / red: approx. 4% (change brake fluid immediately!). Keep in mind This brake fluid meter is calibrated for the DOT 4 brake fluid, which is used in most cars produced since 2006. Replace the battery if the green LED does not light after pressing the button. Wash the probe with tap water after each use. In case of contact with the skin with brake fluid, wash affected skin or clothes with water carefully. Do not expose the brake fluid to the atmosphere for a long time as it is highly hygroscopic. Package includes 1 * car brake liquid LED Tester Detector Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
