10 Best Brake Fluid Testers In 2021

10. OTC 4598 (DOT3) Brake Fluid Tester

The OTC is a great companion to have as it helps catch the lousy fluid before it penetrates and destroys expensive brake slippers and other brake systems components. Other than that, it determines the quality of brake fluid and then measures the moisture from 0-4%. The gadget requires 1.5V AAA batteries That are included in the package. The package also contains detailed instructions on using that gadget and how to clean and maintain it to give you a long service without troubles. The entire length of the metal probe into the fluid, and after a second, it matches colors of LEDs with a color chart to compare 

Cons

• The tester may be a little pricey

9. OBDRESOURCE (DOT3, DOT4, DOT5.1) 

If you are looking for a universal tester and fits almost any vehicle and convenient for personal use, then the OBD is the one for you. You can use it to check the health status of the following brake fluids DOT3, DOT4, and DOT5.1, and most synthetic brake fluids, making it reliable. It has a gooseneck, nickel-plated metal universal probe that provides flexibility on detection. The materials used are resistant to oils and oxidation and not readily corroded. It provides an intuitive interface for easy data reading. 

Cons

• Requires 2-1.5V AAA batteries which are not included

8. ALLOSUN EM2272A 

Brake fluids should be checked regularly to ensure that the safety of your car is in top-notch condition and the ALLOSUN brake fluid tester is the perfect one for you. This pens-shaped brake fluid tester is used to determine whether it is time to change the brake fluid by checking the moisture percentage(0-3%). The quality of the brake fluid as per the LED lights is green to show brake fluid is less than 1.5% and the fluid is all right. The yellow lights show the brake fluid is between 1.5%-3%, and the brake fluid can still be used but checked often. The red lights indicate the brake fluid is more than 3%, and it should be changed immediately.

Cons

• The brake tester has a warranty but only for one year

7. ALLOSUN EM283A Brake Fluid Testers

Your car’s health and safety concerns should be the number one priority, and the ALLOSUN tester is the perfect tool to ensure you are healthy and safe; its type is universal. The portable tester weighs about 5.9 Ounces making it portable and reliable for use whenever and wherever. The probe is inserted about 2cm deep then switched on to read the calibrations as follows, two green lights = quality of the brake oil is good, yellow LED light = quality of the brake oil is terrible. Red LED lights with a buzzer sound = quality of the brake oil are awful and should be changed immediately.

Cons

• The tester should be stored properly to avoid mishaps

6. KYZEE KS11 (DOT3, DOT4, DOT5.1) Brake Fluid Tester

You can trust the green KYZEE brake fluid tester to accurately and quickly enable you to determine the status of your brake fluid. The tester uses the AC pulse testing method, which significantly reduces polarization during testing. The digital fluid tester is fitted with a digital tube display to ensure accurate and fast results. The device is convenient to carry and has an automatic shutdown function to save on power and be carried around anywhere. The tester probe rotates 180°,  is foldable,  and you can use any angle for testing. 

Cons 

• The brake fluid tester uses 9V batteries, which are not included

5. eOUTIL (DOT3, DOT4) Brake Fluid Tester

You do not have to go to the mechanic; everyone you need to check your brake fluid; it will take you only 3 seconds to find out the status of the liquid using the eOUTIL brake fluid tester. The professional mini hydraulic pen is a good assistant for your garage that will help improve work efficiency and increase your safety. The pen has 5 LED lights to indicate the percentage of water in the brake fluid up to 4%. If it shows 3%, then the brake fluid should be changed soon, and 4% of the brake fluid must be changed immediately.

Cons

• The brake fluid is highly hygroscopic therefore should not be exposed for a long time

4. OEMTOOLS 25269 (DOT3 DOT4 DOT5.1) 

There is no need to acquire separate testers for different fluid types; the OEMTOOLS fluid tester is all you need. Also, it covers the ACDelco DOT 3, Motorcraft,  Toyota DOT3, Preston, and Pennzoil types and has markings on the side of the tool to show which kind of brake fluid you are testing; therefore, no guesswork. The device is easy to use; switch it on and test, quickly cycle through the different brake fluids using the switch button and the LED lights that are in-built, guide you even when working in the dark.

Cons 

• The tool does not have a lifetime warranty
• You cannot use it to test two fluids simultaneously

3. KINGBOLEN (DOT3, DOT4, DOT5.1) Brake Fluid Tester

The KINGBOLEN brake fluid tester has an in-built 9 LED light indicator that is easy to translate (directions are given on the calibrations and color) and ensures your safety is not taken for granted. The tester can be used on all car types and is portable, making it reliable and convenient for either a repair shop or your home garage. The brake fluid tester has a nickel-plated probe, oil-proof and oxidation-proof, that helps with the high precision sensor to allow calibration of accurate results. 

Cons 

• The tester uses 2x AAA batteries That are not included: thus, you have to purchase them separately

2. ITEQ (DOT3, DOT4) Brake Fluid Tester

Every causation taken to prevent accidents or malfunction of your car is imminent, which is why the ITEQ fluid tester was engineered. The tools help you gauge the water percentage level in your brake fluid and alert you when there is a need to change it. The device takes seconds to calibrate the water percentage and have in-built LED light indicators with three colors (green, yellow and red) to show no water level and up to 4% of water levels. Operating the tool is easy as switching the button, and when the green light does not blink after switching on, it is time to change the batteries. 

Cons 

• The tester uses 1x 1.5V AAA batteries, which are not included in the package

1. OBDRESOURCE BF-200 Brake Tester

The grey gooseneck probe of the OBDRESOURCE brake fluid tester is highly sensitive, thus taking seconds to calibrate the results of water percentage levels. The universal probe provides flexibility on detection and has LED lights to indicate the color of the brake fluid when necessary. The materials used to allow it to be oil-resistant, not easily corroded, and oxidation-resistant. The tester is energy-saving and environmental-friendly and has an auto-shut function that switches off the device after 5 minutes of inactivity.  

Cons 

• If the tester has not been used for a while, remove the batteries and store them in a dry place; otherwise, it will give you unreliable results.

Frequently Asked Questions – Brake Fluid Testers

Having a brake fluid tester can help you avoid significant accidents caused by brake malfunctions, and it saves you some coins that would be spent in engaging a professional.  You might have some questions based on the device, and the following FAQ will try and answer them or impact new knowledge on the gadgets. 

Q: How regularly should you change brake fluid?

A: As soon as the moisture level is high, from 3-4%, which is why acquiring a brake fluid tester is crucial. There is no time frame given to say that the brake fluid should be changed, say once a week, depending on the moisture level accumulated over time. 

Q: What is the price of brake fluid testers?

A: The brake fluid tester pricing depends on some variables like the brand, design, supplier, and material used in making the tester. Also, different testers have different features that affect the pricing.  

Q: What is the best brake fluid tester in the market?

A: The above review will give you a list of the best brake fluid testers in the market, which are pocket-friendly, good quality, and reliable. Choose your pick from the review as per your taste and purchase power.

Q: How long should a brake fluid tester last? 

A: The durability of the tester will depend on the material used, how you maintain it, and the storage. All these factors will determine for how long your brake fluid tester will be functional and optimal. 

Q: What is the maintenance required for brake fluid testers? 

A: Most brake fluid testers will have careful instructions on the package, but most testers need to be washed with tap water and dried clean or wiped with a wet cloth and left to dry. It is, however, essential to clean the tester before use to avoid contamination.

Conclusion 

Maintaining a car is not easy, but it has to be done as the locomotives help us in our day-to-day activities, and you need it to have a good health report to extend its lifespan and ensure it serves you well. The above review insists on good quality products and reliable sources to ensure you get the best premium care.