--- product_id: 46540413 title: "OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered" price: "ΰΈΏ3869" currency: THB in_stock: true reviews_count: 11 url: https://www.desertcart.co.th/products/46540413-oemtools-25269-brake-fluid-tester-dot-3-dot-4-dot store_origin: TH region: Thailand --- # Measures water content in DOT 3, 4 & 5.1 fluids AAA battery powered for portability Seconds to accurate results OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered **Price:** ΰΈΏ3869 **Availability:** βœ… In Stock ## Summary > πŸ’‘ Stay ahead of brake issues with instant, reliable fluid testing! ## Quick Answers - **What is this?** OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - **How much does it cost?** ΰΈΏ3869 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/46540413-oemtools-25269-brake-fluid-tester-dot-3-dot-4-dot) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Clear LED Indicator System:** Visual, easy-to-read LED results eliminate guesswork and boost confidence. - β€’ **Built-In Self-Test & LED Light:** Ensures accuracy and proper contact every time for reliable maintenance. - β€’ **One-Button Fluid Type Switching:** Seamlessly toggle between DOT 3, DOT 4, and DOT 5.1 for versatile diagnostics. - β€’ **Instant Brake Fluid Health Check:** Get precise moisture readings in seconds to avoid costly brake failures. - β€’ **Compact, Portable & Auto Shut-Off:** Pocket clip design with energy-saving auto shut-off keeps you ready on the go. ## Overview The OEMTOOLS 25269 Brake Fluid Tester is a compact, AAA battery-powered device designed for quick and accurate measurement of water content in DOT 3, DOT 4, and DOT 5.1 brake fluids. Featuring one-button operation, clear LED indicators, a built-in self-test, and an integrated LED light, it ensures reliable diagnostics for both DIYers and professionals. Its portable design with a pocket clip and auto shut-off makes routine brake fluid maintenance effortless and precise. ## Description Quickly and confidently check the condition of your brake fluid with the OEMTOOLS 25269 Brake Fluid Tester. Designed to measure water content in DOT 3, DOT 4, and DOT 5.1 brake fluids, this tool helps you determine when fluid needs to be replaced to maintain safe and reliable braking performance. With simple one-button operation, you can easily switch between fluid types and get fast, accurate readings in seconds. The LED indicator system provides clear, easy-to-understand results, allowing you to quickly assess fluid condition without guesswork. This makes it ideal for both personal use and for showing customers real-time results during service. A built-in self-test function helps ensure the tool is working properly before use, while the integrated LED light improves visibility and helps confirm proper contact with the fluid for more consistent readings. Compact and portable, the tester features a pocket clip for easy carrying, auto shut-off to extend battery life, and operates on a single AAA battery. Whether you're a DIYer or a professional technician, the OEMTOOLS Brake Fluid Tester is a convenient and reliable tool for routine brake system maintenance and diagnostics. Review: Great addition to the tool box for preventative maintenance - I like this tool for judging the health of my brake fluid. I change it regularly thus the color never changes, but I don't know if it is hydroscopicly compromised. This is a great addition to the tool box to ensure my brake fluid is healthy. Review: seems to work well - I have no way of independently determining whether this tool is accurate, but I think it might be pretty good. I tested it on two separate cars. Car1 had just recently had a thorough brake bleeding and fluid refill. Car2 had a brake bleeding and fluid refill about 11 months ago. Car1 showed 0% water content and Car 2 showed between 0 and 1%. The fluid I use is Valvoline DOT 3/4. Based on this amateur test, I would endorse this tool. ## Features - Instantly Check Brake Fluid Health: Brake fluid tester pen quickly measures water content in DOT 3, DOT 4 brake fluid, and DOT 5.1 fluids, helping you know when fluid needs to be changed to maintain braking safety. - Fast, Simple One-Button Testing: Break fluid tester pen push-button operation allows you to easily switch fluid types and get quick, clear results in seconds, making routine checks faster and more convenient. - Clear LED Results You Can Trust: Electric dot pen LED indicators provide easy-to-read results that can be shown to customers or used for quick diagnostics, helping confirm fluid condition without guesswork. - Built-In Self Test and Light for Accuracy: Includes a self-test function and LED tip light to ensure proper contact with fluid, improving testing consistency and reliability. - Compact, Portable for Everyday Use: Pocket-size design with retaining clip, auto shut-off, and AAA battery operation makes it ideal for DIY maintenance, shop use, and on-the-go inspections. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06W55QMVH | | Best Sellers Rank | #520,795 in Automotive ( See Top 100 in Automotive ) #136 in Brake Fluids #1,653 in Brake Tools | | Brand | OEMTOOLS | | Customer Reviews | 4.2 4.2 out of 5 stars (120) | | Date First Available | January 10, 2017 | | Is Discontinued By Manufacturer | No | | Item Weight | 3.04 ounces | | Item model number | 25269 | | Manufacturer | OEMTOOLS | | Manufacturer Part Number | 25269 | | Model | OEMTOOLS 25269 | | OEM Part Number | 25269 | | Product Dimensions | 8.9 x 2.7 x 1.3 inches | | Voltage | 12 Volts | ## Images ![OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - Image 1](https://m.media-amazon.com/images/I/61lOWl9imOL.jpg) ![OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - Image 2](https://m.media-amazon.com/images/I/61XolkwyTfL.jpg) ![OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - Image 3](https://m.media-amazon.com/images/I/61er3+wdOYL.jpg) ![OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - Image 4](https://m.media-amazon.com/images/I/61Jtzl1e2YL.jpg) ![OEMTOOLS 25269 Brake Fluid Tester, DOT 3, DOT 4, DOT 5.1 Digital Brake Fluid Moisture Tester with LED Indicator, Auto Shut Off, Pocket Clip, AAA Battery Powered - Image 5](https://m.media-amazon.com/images/I/619z7Sw5ZyL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Where is it made?** A: It’s made in taiwan. It’s a good tool **Q: Does this brake tester device have lifetime warranty?** A: Check www.oem-tools.com for warranty info. **Q: Will the probes be able to reach the fluid in cars with smaller reservoirs, i.e. in a 2011 Corolla?** A: I’ve never had that problem. Make sure your fluid is topped off, and also, top it off (and drive it for a while) before you test it, so the fluid gets a chance to mix. **Q: How do I make this thing work? Readings never change regardless which fluids cover the contacts! Cannot turn it off.** A: Make sure the battery is good turn it on then select the brake fluid type mine is DOT 4 witch is #2 on the left side on scale or selection the percentage of moisture is on right side of the scale or lights. Turn it on lights should appear then submerge both probes in brake fluid and the lights on right side will indicate the percentage of moisture in fluid. It none of that works return it or exchange it for new one. Mine has worked great from day one ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great addition to the tool box for preventative maintenance *by M***Z on January 15, 2026* I like this tool for judging the health of my brake fluid. I change it regularly thus the color never changes, but I don't know if it is hydroscopicly compromised. This is a great addition to the tool box to ensure my brake fluid is healthy. ### ⭐⭐⭐⭐⭐ seems to work well *by T***L on February 2, 2019* I have no way of independently determining whether this tool is accurate, but I think it might be pretty good. I tested it on two separate cars. Car1 had just recently had a thorough brake bleeding and fluid refill. Car2 had a brake bleeding and fluid refill about 11 months ago. Car1 showed 0% water content and Car 2 showed between 0 and 1%. The fluid I use is Valvoline DOT 3/4. Based on this amateur test, I would endorse this tool. ### ⭐⭐⭐⭐ How to use instructions *by C***D on April 15, 2021* How to use: Switch on Select fluid #1 thru #8. Insert probes in liquid Read the results. Wait 30 seconds for the tester to shut itself off. There is no way to turn off other than wait. If you want to sample two fluids, you must wait for the tester to time out before you can test again. It appears to actually read something because I got different readings from two different fluid sources. Guessing here ## Frequently Bought Together - OEMTOOLS 25269 Brake Fluid Tester DOT 3, DOT4 Brake Fluid, DOT 5.1, Brake Tech Tools, Tests Formulas of Brake Fluid for Excess Moisture, Fluid Test Pen - GODESON 88703 Dial Tire Tread Depth Gauge in MM,Professional for Motorcycle, Car,Truck and Bus - Lisle 81850 Combination Brake Lining Gauge Set,9 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/46540413-oemtools-25269-brake-fluid-tester-dot-3-dot-4-dot](https://www.desertcart.co.th/products/46540413-oemtools-25269-brake-fluid-tester-dot-3-dot-4-dot) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-07-10*