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Hawyet 1 PC Car Brake Fluid Test Pen, Hydraulic Oil Moisture Analyzer Troubleshooter, Universal Diagnostic Test Tool with 5 LED Indicators, Product Compatible with Cars, Trucks, Vans, SUVs (Black)

4.3 (5) Write Review
Free shipping on orders over $29.99

$2.99

$ 0 .99 $0.99

In Stock

About this item

  • Sensitive and Accurate: This detection pen uses a highly sensitive sensor to accurately detect changes in brake fluid level. Whether it is a small drop in level or an obvious lack of level, it can be accurately reflected in the status of the LED indicator light.
  • Lightweight and Portable: The brake fluid test pen is small and easy to carry. You can carry it with you at any time and perform brake fluid testing when needed, making maintenance and repair easier.
  • Instructions: The indicator light is green, indicating that the power supply is OK/no water. Green/yellow, the water content is less than 1%. Green/yellow/yellow, the water content is close to 2%. Green/yellow/ Yellow/red indicates the water content is close to 3%, and it is recommended to replace the brake fluid. The indicator light is green/yellow/yellow/red/red, indicating the water content is higher than 4%, and the brake fluid must be replaced immediately.
  • Packaging Details: You will receive a black car brake fluid test pen. We are committed to providing you with a perfect shopping experience. If you have any usage problems, please feel free to contact us directly and we will solve the problem for you within 24 hours on working days.
  • Note: If the green LED light does not light up after pressing the power button for a long time, the power supply needs to be replaced. Please wash the test probe with clean water after each use. Please do not expose brake fluid to the air for a long time because brake fluid has strong water absorption.


Hawyet 1 PC Car Brake Fluid Test Pen, Hydraulic Oil Moisture Analyzer Troubleshooter, Universal Diagnostic Test Tool with 5 LED Indicators, Product Compatible with Cars, Trucks, Vans, SUVs (Black)


Prior Mckenzie owner
2025-08-31 10:43:42
Cars recommend brake fluid flush every several years for water entrapment. If this devise is correct, it saved me an exchange.
Michael C.
2025-06-27 14:53:55
Checked with new brake fluid, then known bad brake fluid. Showed BOTH as contaminated. BOTH units read same. Purchased a more expensive unit and it has proven to be accurate.
drenalin
2025-06-21 11:00:58
It discovered moisture in the Fluid so when it came time for the brake job, I flushed the old Fluid for new brake fluid.
manuel quilao
2025-04-28 18:06:20
Tried it on my cars works great
Jj
2025-02-09 14:06:15
Batteries are not included even though the listing and even the package it comes in says it should.