---
product_id: 54118936
title: "Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid"
brand: "iteq"
price: "KD 6.89"
currency: KWD
in_stock: true
reviews_count: 13
category: "Iteq"
url: https://www.desertcart.com.kw/products/54118936-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated
store_origin: KW
region: Kuwait
---

# 5 LED color-coded indicators Water content accuracy ±1% AAA battery powered, portable Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid

**Brand:** iteq
**Price:** KD 6.89
**Availability:** ✅ In Stock

## Summary

> 🚗💡 Don’t brake your streak—test your brake fluid like a pro!

## Quick Answers

- **What is this?** Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid by iteq
- **How much does it cost?** KD 6.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/54118936-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated)

## Best For

- iteq enthusiasts

## Why This Product

- Trusted iteq brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety-First Alerts:** Color-coded LEDs warn you before brake fluid degradation risks your safety on the road.
- • **Compact & User-Friendly Design:** Lightweight pen-style tester fits in your glovebox for on-the-go diagnostics.
- • **Certified Quality & Convenience:** CE & RoHS approved with auto shut-off and protective cap for hassle-free maintenance.
- • **Instant Brake Fluid Health Check:** Get precise water contamination levels in seconds with 5 intuitive LED indicators.
- • **Calibrated for DOT3 & DOT4 Fluids:** Engineered for the most common brake fluids ensuring reliable, industry-standard testing.

## Overview

The ITEQ Brake Fluid Liquid Tester Pen offers millennial professionals a quick, accurate, and portable solution to monitor brake fluid quality. Featuring 5 LED indicators calibrated for DOT3 and DOT4 fluids, it detects water contamination levels with ±1% precision, helping prevent costly repairs and safety hazards. Powered by a single AAA battery and CE/RoHS certified, this compact tester ensures you stay ahead of vehicle maintenance with effortless, on-the-spot diagnostics.

## Description

How to Use: 1. Turn on the brake fluid tester by pressing the button on top. A green light should light up. If the light does not come on, it may be time to change a battery 2. Unscrew the lid for the brake fluid reservoir, and take off the cap for the brake fluid tester 3. Dip the test probes into the brake fluid and the LED lights will indicate the percentage of water in the brake fluid 4. After testing, remember to screw the lid of the brake fluid reservoir back on tightly 5. The tester will automatically power off after 12 seconds of inactivity What to Do: The LED lights will indicate the percentage of water in the brake fluid: - Green: No water - Green/Yellow: Less than 1% of water - Green /Yellow/Yellow: Approx.2% of water - Green/Yellow/Yellow/Red: Approx.3% (Brake fluid should be changed) -Green/Yellow/Yellow/Red/Red: Approx.4% (Brake fluid must be changed urgently!) Please Note: The ITEQ brake fluid tester is calibrated for DOT4 and DOT3 brake fluids, and DOT4 is used in most cars produced since 2006 Replace the battery if the green LED indicator no longer lights up after you press the button Wash the test probe with tap water after every use In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water Do not expose brake fluid to the atmosphere for a long time as it is highly hygroscopic Package： 1 x brake fluid tester(Battery Not Included)

Review: Reliable and Accurate - Good Value for Money - Except for the battery cover which needs some scotch tape to stay put (!!), this is indeed a very reliable and accurate brake fluid tester, and surprisingly so. Looking at the poor snap lock design of the battery cover I did not have high hopes for the rest of this device under $15. I was indeed very surprised by its accuracy to exactly measure water content in brake fluid, which is its intended purpose. I ran multiple calibrated tests with new and 3-year old brake fluid all stored in tightly sealed containers. Took exactly 5mL brake fluid samples each time being very careful in handling the sample so the sample's glass beaker was totally dry and any sample transfer syringe was also totally dry. Tested to a baseline of 0% water content. Added a drop of tap water into the brake fluid sample and thoroughly mixed it. A drop of water is generally 0.05mL, so achieves 1% water content with a drop of water added. It read exactly 1% on the tester! Then added another drop, thoroughly mixed it and tested, and it read 2% water content! Added another drop of water likewise and it read 3% water content! Added yet another drop (the 4th drop) and it read 4% water content, all as they should appear! The sensors are calibrated to be highly sensitive and accurate. Probably the only purchase I can ever recall less than $15 that is so darn accurate. Now if you all (nice manufacturer in China though they may appear German to some based on the German words on the tester) will only fix that battery cover so the AAA battery does not pop out during a test without scotch tape on it, you will really have an all-round superlative winner, and not desperately try to pass as German quality. I also looked at the brake fluid boiling point testers which are much more expensive and cover a wider range of brake fluids. Those are touted to be the most accurate. Question really is if those are even necessary for the most common every-day use with such a low cost and highly accurate electrical conductance tester available. Ultimately the boiling point of brake fluid is inversely related to its water content, and electrical conductance infers the water content based on known conductance testing references.
Review: Tools - Worked amazing

## Features

- Test the car brake fluid quality quickly to check whether it’s qualified, which can remind you to change the brake fluid when necessary to avoid traffic accident
- The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red
- Calibrated for cars using DOT4 and DOT3 brake fluids (But DOT3 is almost replaced by DOT4 because DOT4 has better performance)
- Only takes seconds to know the results,very easy to use
- CE and RoHS approved. Protective cap included.Takes 1 x AAA/1.5V battery (not included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076SC377J |
| Batteries | 1 AAA batteries required. |
| Best Sellers Rank | #5,866 in Automotive ( See Top 100 in Automotive ) #148 in Diagnostic, Test & Measurement Tools |
| Brand | ITEQ |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,856) |
| Date First Available | December 26, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.41 ounces |
| Item model number | BFT1001 |
| Manufacturer | ITEQ |
| Manufacturer Part Number | BFT1001DOT4 |
| Product Dimensions | 5.91 x 0.59 x 0.59 inches |

## Images

![Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid - Image 1](https://m.media-amazon.com/images/I/61oXQ0m7PYL.jpg)

## Questions & Answers

**Q: Will this work with 5.1 brake fluid?**
A: Thanks for asking.
The ITEQ Brake Fluid Tester works with DOT 3, DOT 4 and DOT 5.1 brake fluids but not with DOT 5 Brake Fluid.
The main difference between DOT 4 and DOT 5.1 brake fluids is in their boiling points. DOT 4 and DOT 5.1 are both glycol-based brake fluids which are used widely in the automotive and cycle industry. They are compatible with each other, which means they can be readily mixed without harming your brake system.
But please never mistake with DOT 5 which is silicone-based and should never be mixed with any other DOT fluid.
Hope these information can be help with you.

**Q: Why it says here also for dot 3 and package says for dot 4?**
A: Hi, the tester works for both dot 3 and dot 4 brake fluid.
And the dot 4 liquid is more widely applied because it has better performance than dot 3 liquid.
The package will be changed.

**Q: Dipping just the tip of the prongs seems to give an accurate reading. When you submerge them all the way per the instructions it reads red??**
A: No, you need to dip the prongs all the way to the plastic rim to get a reliable reading.  If you dip only the tips, the tester may indicate less moisture than what's really present.

**Q: My sonata has a plastic strainer at top. how can i get the probes past that?  how to remove strainer?**
A: I don't have a Hyundai, but my Nissan has the strainer, and it is removable.  Maybe try and see if yours is removable.  I just stuck my finger in and applied outward pressure to the wall and it eventually lifted out.  Hope it helps.  The device definitely works though.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable and Accurate - Good Value for Money
*by R***Y on October 12, 2022*

Except for the battery cover which needs some scotch tape to stay put (!!), this is indeed a very reliable and accurate brake fluid tester, and surprisingly so. Looking at the poor snap lock design of the battery cover I did not have high hopes for the rest of this device under $15. I was indeed very surprised by its accuracy to exactly measure water content in brake fluid, which is its intended purpose. I ran multiple calibrated tests with new and 3-year old brake fluid all stored in tightly sealed containers. Took exactly 5mL brake fluid samples each time being very careful in handling the sample so the sample's glass beaker was totally dry and any sample transfer syringe was also totally dry. Tested to a baseline of 0% water content. Added a drop of tap water into the brake fluid sample and thoroughly mixed it. A drop of water is generally 0.05mL, so achieves 1% water content with a drop of water added. It read exactly 1% on the tester! Then added another drop, thoroughly mixed it and tested, and it read 2% water content! Added another drop of water likewise and it read 3% water content! Added yet another drop (the 4th drop) and it read 4% water content, all as they should appear! The sensors are calibrated to be highly sensitive and accurate. Probably the only purchase I can ever recall less than $15 that is so darn accurate. Now if you all (nice manufacturer in China though they may appear German to some based on the German words on the tester) will only fix that battery cover so the AAA battery does not pop out during a test without scotch tape on it, you will really have an all-round superlative winner, and not desperately try to pass as German quality. I also looked at the brake fluid boiling point testers which are much more expensive and cover a wider range of brake fluids. Those are touted to be the most accurate. Question really is if those are even necessary for the most common every-day use with such a low cost and highly accurate electrical conductance tester available. Ultimately the boiling point of brake fluid is inversely related to its water content, and electrical conductance infers the water content based on known conductance testing references.

### ⭐⭐⭐⭐⭐ Tools
*by J***N on January 12, 2026*

Worked amazing

### ⭐⭐⭐⭐⭐ Great brake fluid tester
*by M***R on January 19, 2026*

Perfect!!! easy to use tester

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- ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid
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**Shop now:** [https://www.desertcart.com.kw/products/54118936-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated](https://www.desertcart.com.kw/products/54118936-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-08*