JDiag FT123 Brake Fluid Tester with 5 LED Mini Indicator For DOT3/DOT4

  • Brands Jdiag
  • Product Code: OS8833
  • Availability: In Stock
  • 0.30kg
  • 22.00cm * 7.00cm * 3.00cm (L x W x H)
  • Contact with Skype:
    Free shipping 7-18 work days by China post
    DHL shipping 3-7 work days will arrive.

Diag FT123 Brake Fluid Tester is used to detect the quality of brake fluid, brake fluid moisture percentage of the test results will be showen by 5 LED lights

According to the change in conductivity to determine the water changes in brake oil, through the light-emitting diode, FT123 clearly shows the degree of moisture, high moisture content will lead to lower boiling point, a ecting the braking performance. Red light means the brake oil needs to be replaced, green light means the oil state is good, and yellow light means the oil state is acceptable.

Highlights of FT123 brake fluid tester:

Powerful function with ease operation
Accurate measurement, safety;
Detect all types brake oil
Automatically power on
DOT 3/4/5 Brake Fluid Testable

Product Instructions

Green: Battery OK/State Good
Green/Yellow: Water content less than 1%
Green/Yellow/Yellow: Water content close to 2%
Green/Yellow/Yellow/Red: Water content close to 3%, recommended to replace the brake fluid
Green/Yellow/Yellow/Red/Red: Water content higher than 4%, Dangerous, replace the brake fluid immediately
Notice: The above data is for reference only
Battery: AAA X1(not Included in package), battery cover is opened in the direction indicated by the arrow.


If press the power button then green LED does not light up, need to replace the battery
Wash the test probe with water after use
Please do not expose the brake fluid in the air for a long time, it has a strong water absorption

Prepare before testing
Unscrew the lid of the brake uid reservoir and unplug the pen from host. Immersed the test probe into the brake uid tank

Water content testing
Press the power button then green LED will light. hold for 1s, the test results will be showen by the LED lights, test finish, FT123 will automatically shut down after 12 seconds.


1pc x JDiag FT123 Brake Fluid Tester(Not includes the AAA battery)

Shipping Warranty:

We usually ship goods By DHL and China post.

DHL: 3-5 days

If you want ship by UPS, EMS, Fedex,Aramex, 

UPS and Fedex: 5-7 days

Aramex and EMS: 10-15 working days (this express can’t ship with battery)

China post: 7- 20 working days. At most 45 days.

If you have not received the goods during the normal time, please contact us for checking the package status timely online or by email.

Quality Problem:

1.Warranty Time: within 7 days after receiving package, Buyer: Submit a complaint(Mail toinfo@obdsvs.com ) and Return the items to Seller's assigned address by DHL or Post. Seller: If can not repair,exchange a new one (Items must be in new condition with original packaging and accessories.)  ship cost: Seller

2:within 8-14 days after receiving package: Buyer: Submit a complaint and Return the items to assigned address by DHL or Post for repairing. Seller: If can not repair,exchange a new one (Items must be in new condition with original packaging and accessories.)

Return Ship cost: Buyer, Resend ship cost: Seller

3.within 15 days to 1 year after receiving package. Buyer: Submit a complaint and Return the items to assigned address by DHL or Post for repairing, Ship cost: Buyer

Lost in the delivery:

1.30 days after shipping, Buyer: Submit proof to seller, Seller: Contact carrier to ask for Claimant and arrange another shipment to buyer,  Ship Cost: Seller

Customs Problem:

1.30 days after shipping,Buyer: Finish customs clearance when import,Seller: Try to help buyer to finish customs clearance but not responsible on this.

Customs duties or agent fees: Buyer。

Received wrong Items:

1.within 3 days after receiving package。Buyer: Report to Seller,and return the full package in good condition to assigned address by DHL or Post in 3 days. Seller: Arrange shipment for the correct items. Ship cost: Seller

Man-made Damage: such as update machine online, dismantle the equipment, and so on: within 1 year. Buyer: Report to Seller,and return the items for repairing to assigned address by DHL or Post. ship cost: Buyer


1.Warranty Policy only protects Main parts.Other parts are out of our warranty policy.

2.Before return,please confirm with us. we will give you a shipping address once confirmming the problem. Buyer will be responsible for any risks or costs without our permission.

3.Buyer needs return the items by cheaper DHL or Post, or we can't get them because of restrict Customs Policy.

4.The Warranty Policy fits for all products except some products which state the warranty specially in description.

Warranty Item

Main Unit for Equipment                 1 year warrnaty

Machine peripheral equipments and wire No warranty

Car diagnostic laptop                                 3 months

Data Hard Disk                                No warranty

Car software                                No warranty

Consumables                                No warranty

Write a review

Note: HTML is not translated!
    Bad           Good