--- product_id: 382594009 title: "Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer" brand: "hallocool" price: "€ 39.65" currency: EUR in_stock: true category: "Hallocool" url: https://www.desertcart.nl/products/382594009-antifreeze-refractometer-4-in-1-def-antifreeze-coolant-refractometer store_origin: NL region: Netherlands --- # Wide measurement range Automatic Temperature Compensation 4-in-1 fluid testing Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer **Brand:** hallocool **Price:** € 39.65 **Availability:** ✅ In Stock ## Summary > ❄️ Stay Cool, Stay Ahead: The Ultimate 4-in-1 Fluid Tester for the Modern Mechanic ## Quick Answers - **What is this?** Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer by hallocool - **How much does it cost?** € 39.65 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/382594009-antifreeze-refractometer-4-in-1-def-antifreeze-coolant-refractometer) ## Best For - hallocool enthusiasts ## Why This Product - Trusted hallocool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Ready:** Lightweight aluminum body with a non-slip grip and full kit for on-the-go pros. - • **All-in-One Precision:** Test antifreeze, DEF, battery acid, and washer fluid with one sleek tool. - • **Effortless Operation:** 3-step testing—no batteries, no fuss, just reliable readings anytime, anywhere. - • **Freeze Point Accuracy:** Measures antifreeze freeze points from -50°C to 0°C for ultimate engine protection. - • **DEF Concentration Control:** Pinpoint diesel exhaust fluid levels between 30%-35% to optimize emissions performance. ## Overview The Antifreeze Refractometer 4-in-1 is a compact, battery-free optical tool designed for precise measurement of antifreeze freeze points, diesel exhaust fluid concentration, battery acid specific gravity, and windshield washer fluid freeze points. Featuring automatic temperature compensation and a durable aluminum body, it’s engineered for professional-grade vehicle maintenance across cars, trucks, and RVs. ## Description Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer | Antifreeze Tester for Checking Antifreeze Coolant System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid: desertcart.com: Industrial & Scientific ## Features - 4-IN-1 AUTOMOTIVE FLUID TESTING – Check antifreeze and coolant, diesel exhaust fluid (DEF), lead-acid battery electrolyte, and windshield washer fluid with one compact optical refractometer. A practical tool for cars, trucks, RVs, garages, and routine vehicle maintenance - MULTIPLE SCALES FOR ESSENTIAL FLUIDS – Measures ethylene and propylene glycol antifreeze freeze point from -50°C to 0°C, DEF concentration from 30% to 35%, battery acid specific gravity from 1.10 to 1.40Kg/L, and windshield washer fluid from -40°C to 0°C - SIMPLE 3-STEP OPERATION – Place 2–3 drops of fluid on the prism, close the transparent cover, then look through the eyepiece toward a light source and read the boundary line on the scale. No batteries or electronic setup required - ATC FOR MORE CONSISTENT READINGS – Built-in Automatic Temperature Compensation helps reduce measurement variation caused by changes in ambient temperature. The adjustable eyepiece provides a clear scale view for quick visual checks - DURABLE, PORTABLE COMPLETE KIT – Features a lightweight aluminum body, textured non-slip grip, clear prism cover, and adjustable focus. Includes a protective carrying case, dropper, cleaning cloth, and calibration screwdriver for storage, maintenance, and travel ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09FYV9D72 | | Best Sellers Rank | #183,319 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #80 in Lab Refractometers | | Date First Available | September 11, 2021 | | Item Weight | 9.9 ounces | | Manufacturer | Hallocool | | Product Dimensions | 6.1 x 1.57 x 1.57 inches | ## Images ![Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer - Image 1](https://m.media-amazon.com/images/I/41a5-B9m7kL.jpg) ![Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer - Image 2](https://m.media-amazon.com/images/I/51Jo98Qx5zL.jpg) ![Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer - Image 3](https://m.media-amazon.com/images/I/51St9igxMnL.jpg) ![Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer - Image 4](https://m.media-amazon.com/images/I/41rSL6+NG8L.jpg) ![Antifreeze Refractometer 4-in-1 DEF Antifreeze Coolant Refractometer - Image 5](https://m.media-amazon.com/images/I/41meXSCj3-L.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - Antifreeze Refractometer 4-in-1 Coolant Refractometer Antifreeze Tester for Automobile Antifreeze System Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid - ITEQ Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid - Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 foil wrapped test strips), 1 Pack --- ## 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.nl/products/382594009-antifreeze-refractometer-4-in-1-def-antifreeze-coolant-refractometer](https://www.desertcart.nl/products/382594009-antifreeze-refractometer-4-in-1-def-antifreeze-coolant-refractometer) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-09-22*