--- product_id: 310832896 title: "Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid" brand: "iteq" price: "€ 43.25" currency: EUR in_stock: true reviews_count: 5 category: "Iteq" url: https://www.desertcart.gr/products/310832896-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated store_origin: GR region: Greece --- # 5 LED indicators for instant clarity Calibrated for DOT3 & DOT4 fluids Seconds to test brake fluid quality Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid **Brand:** iteq **Price:** € 43.25 **Availability:** ✅ In Stock ## Summary > 🚗 Don’t brake for guesswork—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?** € 43.25 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/310832896-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 - • **Rapid Results in Seconds:** Get reliable brake fluid status in under 10 seconds—because your time and safety matter. - • **Certified Safety & Durability:** CE and RoHS approved with a protective cap, combining trusted quality with long-lasting performance. - • **Compact & User-Friendly Design:** Lightweight and easy to operate with one AAA battery, perfect for on-the-go professionals and DIY enthusiasts alike. - • **Instant Brake Fluid Health Check:** 5 vibrant LED indicators reveal water content at a glance, so you never miss a critical warning. - • **Precision-Calibrated for DOT3 & DOT4:** Engineered to work seamlessly with the most common brake fluids, ensuring accurate diagnostics every time. ## Overview The ITEQ Brake Fluid Liquid Tester Pen offers a fast, reliable way to measure water contamination in DOT3 and DOT4 brake fluids using 5 LED indicators. Compact and easy to use, it delivers precise results in seconds, helping you maintain optimal brake performance and avoid costly accidents. CE and RoHS certified, this tester is a must-have tool for every safety-conscious driver. ## 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: Muy fácil de usar, para uso personal está excelente, para un taller usaría uno mejor. Por el precio vale la pena. Review: Esse produto informa, com uma certa precisão, o momento em que o fluído de freio deve ser substituído. ## 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. | | Brand | ITEQ | | Customer Reviews | 4.4 4.4 out of 5 stars (3,741) | | Date First Available | 26 December 2017 | | Item Weight | 40 g | | Item model number | BFT1001 | | Manufacturer | ITEQ | | Manufacturer Part Number | BFT1001DOT4 | | Product Dimensions | 15 x 1.5 x 1.5 cm; 40 g | ## 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 ### ⭐⭐⭐⭐⭐ Review *by C***Z on 14 November 2024* Muy fácil de usar, para uso personal está excelente, para un taller usaría uno mejor. Por el precio vale la pena. ### ⭐⭐⭐⭐⭐ Review *by E***E on 3 April 2023* Esse produto informa, com uma certa precisão, o momento em que o fluído de freio deve ser substituído. ### ⭐⭐⭐⭐⭐ Review *by R***Y on 12 October 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. ## Frequently Bought Together - ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid - Mityvac MV8000 Automotive Tune-up and Brake Bleeder Kit, Selectline Hand Pump (MV8010), One Finger Vacuum Release, Ergonomic Design, Gearless Diaphragm Gauge, 4.5oz Fluid Reservoir, 4 Tapered Adapters - Prestone AS401 DOT 3 Synthetic Brake Fluid - 32 oz. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/310832896-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated](https://www.desertcart.gr/products/310832896-brake-fluid-liquid-tester-pen-with-5-led-indicators-calibrated) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-25*