--- product_id: 427763156 title: "ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5" brand: "zktool" price: "R452" currency: ZAR in_stock: true category: "Zktool" url: https://www.desertcart.co.za/products/427763156-zktool-upgraded-automotive-brake-fluid-tester-pen-for-dot3-dot4 store_origin: ZA region: South Africa --- # 5 LED indicators for instant water level readout Tests moisture in DOT3/4/5 brake fluids Auto shut-off saves battery life ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5 **Brand:** zktool **Price:** R452 **Availability:** ✅ In Stock ## Summary > 🚗💡 Stay ahead of brake failure—test smarter, drive safer! ## Quick Answers - **What is this?** ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5 by zktool - **How much does it cost?** R452 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/427763156-zktool-upgraded-automotive-brake-fluid-tester-pen-for-dot3-dot4) ## 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 - • **Compact & Portable:** Sleek pen design fits in your glovebox or pocket, empowering you to test brake fluid quality anytime, anywhere. - • **Durable Premium Build:** High-grade nylon shell resists corrosion and wear, promising long-lasting reliability on every inspection. - • **Instant Visual Alerts:** Five-color LED system instantly signals brake fluid health—green to red—so you never miss a critical warning. - • **Precision Moisture Detection:** Accurately measures water content across DOT3, DOT4, DOT5, ENV4, and ENV6 brake fluids for safer drives. - • **Energy Efficient Auto Shut-Off:** Smart 12-second auto power-off extends battery life, ensuring your tester is ready when you are. ## Overview The ZKTOOL Upgraded Automotive Brake Fluid Tester Pen is a compact, high-precision tool designed to quickly measure moisture levels in multiple brake fluid types (DOT3, DOT4, DOT5, ENV4, ENV6). Featuring a 5-LED color-coded indicator system, it provides instant, easy-to-understand readings to help prevent brake system failures. Built with a durable nylon shell and equipped with an auto shut-off function, this tester combines reliability, convenience, and energy efficiency for professional-grade vehicle maintenance. ## Description Buy ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5 | Universal 5 in 1 Detector ENV6 ENV4 Oil Detection Pen, 5 LED Indicator Light, Premium Brake Fluid Moisture Analyzer Tool at desertcart UK. Free delivery on eligible orders. ## 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 | 27,782 in Automotive ( See Top 100 in Automotive ) 190 in Brake Tools | | Brand | ZKTOOL | | Customer Reviews | 4.4 4.4 out of 5 stars (752) | | Date First Available | 7 Nov. 2021 | | Guaranteed software updates until | unknown | | 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 ![ZKTOOL Upgraded Automotive Brake Fluid Tester Pen for DOT3 DOT4 DOT5 - Image 1](https://m.media-amazon.com/images/I/61kZSGa+nTL.jpg) ## 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.co.za/products/427763156-zktool-upgraded-automotive-brake-fluid-tester-pen-for-dot3-dot4](https://www.desertcart.co.za/products/427763156-zktool-upgraded-automotive-brake-fluid-tester-pen-for-dot3-dot4) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-17*