Duoyi DY23 DY23B Auto Brake Fluid Tester Digital Fluid Inspection Check Car Oil Air Quality LED

Description: Brake pressure was transmited by brake fluid, the pressure transmit will out of function once brake fluid include too water. In order to safe-driving, we must test water ratio scale in brake fluid regularly. The brake fluid tester help us do current maintenance, make sure we drive in safety condition. Brake fluid tester with 250mm goose neck probe provides flexibility of detection Chromed detector resistant to oils and oxidation Hand-held size provide one hand operation experience Buzzing and red light double alarm system, test result is clear absolutely DY23: No Screen DY23B: With Screen Operation Manual: 1. Install one 9V(6F22) battery at the back of tester. 2. After inserting the battery, press POWER button to turn on the tester, all LEDs lights turn on with buzzer sounding, which indicates the product self-test is successful. 3. Press SELECT button, it will locate DOT3 model automatically. 4. Each time you push the SELECT button, it will recycle from DOT3 to DOT4 to DOT5.1 with the indicator LEDs. 5. Immerse the probe into brake fluid and you will get different colors of LED lights, they indicate: Green Light: indicates the brake fluid water content is below 1% The First Yellow Light: indicates the brake fluid water content is approximately 1.5% The Second Yellow Light: indicates the brake fluid water content is approximately 2.5% The First Red Light: indicates the brake fluid water content is approximately 3% The Second Red Light: indicates the brake fluid water content is more than 4% 6. Press POWER button to turn off the tester. Note: 1. After use, please clean up the residual stains on the probe that might affect the test. 2. If in use for a long time, you'd better remove all batteries and store in a dry place at a normal room temperature. Package Included: 1 X Brake Fluid Tester(Battery not include) 1 X User Manual (in English)