--- product_id: 427763156 title: "Universal Brake Fluid Oil Test Pen" brand: "zktool" price: "AR$44071" currency: ARS in_stock: true reviews_count: 8 category: "Zktool" url: https://www.desertcart.com.ar/products/427763156-universal-brake-fluid-oil-test-pen store_origin: AR region: Argentina --- # 5 LED moisture indicator Auto power-off in 12s Tests 5 brake fluid types Universal Brake Fluid Oil Test Pen **Brand:** zktool **Price:** AR$44071 **Availability:** ✅ In Stock ## Summary > 💡 Stay ahead of brake failure—test smarter, drive safer! ## Quick Answers - **What is this?** Universal Brake Fluid Oil Test Pen by zktool - **How much does it cost?** AR$44071 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/427763156-universal-brake-fluid-oil-test-pen) ## Best For - zktool enthusiasts ## Why This Product - Trusted zktool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Build Quality:** High-grade nylon shell resists corrosion, ensuring long-lasting performance on the go. - • **Compact & Travel-Ready:** Lightweight 50g design fits in your glove box or toolkit—always ready when you are. - • **Universal Compatibility:** Seamlessly tests DOT3, DOT4, DOT5, ENV4, and ENV6 brake fluids—one pen for all your vehicles. - • **Rapid & Reliable Readings:** Get accurate moisture levels in seconds, empowering proactive brake maintenance. - • **Precision Moisture Detection:** 5-color LED system instantly reveals brake fluid water content for safer rides. ## Overview The ZKTOOL Upgraded Brake Fluid Tester Pen is a compact, 5-in-1 diagnostic tool designed for professional-grade moisture analysis across DOT3, DOT4, DOT5, ENV4, and ENV6 brake fluids. Featuring a 5-LED color-coded indicator, it delivers fast, accurate readings to help prevent brake system failures. Built with a corrosion-resistant nylon shell and auto power-off functionality, this tester combines durability with convenience for every millennial manager who values safety and efficiency on the road. ## Description Buy ZKTOOL Upgraded Version Automotive Brake Fluid Tester Pen, 5 in 1 Detector, Can Test DOT3 DOT4 DOT5 ENV6 ENV4, 5 LED, Universal Brake Fluid Oil Detection Pen, Brake Fluid Moisture Analyzer at desertcart UK. Free delivery on eligible orders. Review: Great value brake fluid tester - Worked remarkably well Review: Good value for money. - Very easy to use. Seems accurate too. I tested several cars with differing ages of brake fluid and it clearly indicated correct variations of % value. Good product for the money. ## Features - 【Function】 The upgrade version brake fluid tester moisture gauge can test the moisture content of DOT3 DOT4 DOT5 ENV6 ENV4 brake fluid extensively. It has faster and more accurate reading capabilities than similar products, while at the same time being more extensive. - 【LED Lights】 The five LED lights indicate the proportion of water in the brake fluid in three colors: green, yellow, and red. Easily figure out the percentage of water in your brake fluid and consider whether to replace it. Please see the specific instructions below. - 【Convenience】 The brake fluid tester tool is simple and convenient. It only takes a few seconds to check the quality of the car's brake fluid. It is a must-have item because it is small and easy to carry. It also automatically shuts down if not used within 12 seconds, saving battery power. (Requires 1 x AAA / 1.5V battery, not included) - 【Quality】 The new Brake Fluid Liquid Tester Pen is the perfect tool to update after many researches on similar products on the market. Read more accurately during the test. At the same time, its shell material is made of high quality nylon compared to ABS material. The product is more corrosion resistant and has a longer service life. - 【Service】 ZKTOOL aims to provide professional and comprehensive auto repair tools and services in the auto repair industry. If you have any questions, please contact us via email. We will provide the best solution. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09L6NYDR8 | | Best Sellers Rank | 5,227 in Automotive ( See Top 100 in Automotive ) 38 in Brake Tools | | Brand | ZKTOOL | | Customer Reviews | 4.4 4.4 out of 5 stars (706) | | Date First Available | 7 Nov. 2021 | | Item Weight | 50 g | | Item model number | DOT3 DOT4 DOT5 ENV6 ENV4 | | Manufacturer | ZKTOOL | | Manufacturer part number | ZKEU007 | | Model | DOT3 DOT4 DOT5 ENV6 ENV4 | | OEM Part Number | DOT3, DOT4, DOT5, ENV4, ENV6 | | Package Dimensions | 24.9 x 7.8 x 2.4 cm; 50 g | | Special Features | Universal | ## Images ![Universal Brake Fluid Oil Test Pen - Image 1](https://m.media-amazon.com/images/I/61kZSGa+nTL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great value brake fluid tester *by N***L on 6 March 2026* Worked remarkably well ### ⭐⭐⭐⭐⭐ Good value for money. *by B***R on 12 April 2026* Very easy to use. Seems accurate too. I tested several cars with differing ages of brake fluid and it clearly indicated correct variations of % value. Good product for the money. ### ⭐⭐⭐⭐ A nice little gadget to do tests *by N***L on 15 November 2024* I like gadgets & this is a useful tool to check brake fluid, the only problem was there were no batteries in the pack (maybe they didn’t get put in by mistake) ## Frequently Bought Together - ZKTOOL Upgraded Version Automotive Brake Fluid Tester Pen, 5 in 1 Detector, Can Test DOT3 DOT4 DOT5 ENV6 ENV4, 5 LED, Universal Brake Fluid Oil Detection Pen, Brake Fluid Moisture Analyzer - Sealey Ak4120 Ethylene Glycol Antifreeze Tester Disc Type - Sealey AK4122 Propylene Glycol Antifreeze Tester Disc Type --- ## 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.com.ar/products/427763156-universal-brake-fluid-oil-test-pen](https://www.desertcart.com.ar/products/427763156-universal-brake-fluid-oil-test-pen) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-19*