Car 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 DY23 brake fluid detector convenient and easy to use. It is can measure the water content and health of DOT-3. DOT-4. DOT-5.1 brake fluid and determine whether the brake fluid needs to be replaced. help us do current maintenance. make sure we drive in safety condition. It is not only a good helper for you to diagnose your car. but also a money-saving tool that can save you a lot of repair bills.

To better suit your needs and preferences. DUOYI has developed several different brake fluid tester. To allow you to choose and purchase the right product faster. we provide purchase links for the corresponding products. If necessary. you can click on the corresponding product link below to learn more!

DUOYI DY23 Brake Fluid Detecter>>

DUOYI DY23B Brake Fluid Detecter>>

DUOYI DY23D Brake Fluid Detecter>>

DUOYI Brake Fluid Detecter Series>>

• Key Features: 

  ?Support 3 Brake Oil Type: The brake oil tester can support 3 brake fluid type detection. detect DOT3/DOT4/DOT5.1 brake fluid. Our brake fluid tester is universal fit for most vehicles. 
  ?High-sensitive Probe Fast Detection: The probe of brake fluid tester adopts highly sensitive sensor. which can in 2 seconds quickly and accurately measure the water content in the brake fluid. to determine whether the brake fluid needs to be replaced. 
  ?LED Indicator & Sound Alarm: Brake fluid moisture detector with 3 LED lights show selected brake fluid types and 6 LED lights show percentages of water in the brake fluid. When the water content of the brake fluid reaches 2.5%. yellow light on indicator to remind you to change the brake fluid. When the water content reaches 3.0%. the indicator light will turn red and the brake fluid tester will emit a beepalarm to remind you need to change the brake fluid immediately to ensure safety. The warning sound is loud and stereoscopic. allowing you to easily measure even in noisy environments. 
  ?250mm Flexible Probe: Brake oil water content analyzer is equipped with a 250MM long gooseneck probe. the probe is covered with chromed surface. which is resistant to oils and oxidation. which can be bent at will. allowing easily testing even hard-to-reach areas. 
  ?Thoughtful Design: DY23 digital brake fluid tester is made of high-grade materials. small size and ergonomic appearance design. providing comfortable touching. Reinforced material against falling. sturdy and durable. which greatly increases the service life.
  
  

• Specification: 

  Material: Plastic & Metal 
  Power Supply: 6F22 / 9V 
  Length of Probe: 250mm/ 9.84 
  Dimension: 9.06 x 4.33 x 2.36 
  Weight: 0.53 lbs
  
  

• Package Includes: 

  1 x Brake Fluid Tester(Battery not included) 
  1 x User Manual 
  1 x Package Box
  
  

• Operation Steps: 

  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. 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. the different colored LED lights mean as below: 
  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.
  Notes: 1. After use. please clean the probe and avoid any retention of stains that might affect the test. 2. If in use for a long time. best to remove all batteries and store in a dry place at normal room temperature.