--- product_id: 52141901 title: "New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point" brand: "gain express" price: "€ 0.30" currency: EUR in_stock: false url: https://www.desertcart.hr/products/52141901-new-design-automotive-battery-antifreeze-refractometer-with-calibration-knob-atc store_origin: HR region: Croatia --- # Screwdriver-free calibration knob Precision ±0.01 specific gravity Wide -60°C to 0°C range New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point **Brand:** gain express **Price:** € 0.30 **Availability:** ❌ Out of Stock ## Summary > ❄️ Stay Cool, Charge Smart — Master Your Battery’s Health Like a Pro! ## Quick Answers - **What is this?** New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point by gain express - **How much does it cost?** € 0.30 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/52141901-new-design-automotive-battery-antifreeze-refractometer-with-calibration-knob-atc) ## Best For - gain express enthusiasts ## Why This Product - Trusted gain express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Durable:** Lightweight aluminum build fits perfectly in your toolkit for on-the-go diagnostics. - • **Effortless Calibration:** Innovative knob design eliminates the need for tools, saving time and hassle. - • **Freeze-Proof Confidence:** Accurately measures antifreeze down to -60°C, protecting your engine in extreme cold. - • **Dual Glycol Compatibility:** Supports both ethylene and propylene glycol for versatile coolant testing. - • **Precision Battery Health Check:** Detects battery fluid specific gravity with ±0.01 accuracy to prevent unexpected failures. ## Overview The GAIN EXPRESS RHAN-200ATC refractometer offers precise measurement of antifreeze freezing points (-60°C to 0°C) and battery fluid specific gravity (1.100-1.400sg) with ±0.01 accuracy. Featuring a user-friendly calibration knob, it supports both ethylene and propylene glycol coolants, ensuring reliable battery and cooling system diagnostics in a compact, durable aluminum design. ## Description Antifreeze refractometers are designed to test the concentration of battery fluids, antifreeze liquid and cleaning fluids. The indicated percentage show which temperature the fluid will be frozen for both propylene glycol and ethylene glycol. It can also be used for checking the strength of electrolyte battery solutions. This model uses °C unit system chart. With the indication of the percentage you will know the freezing point of either ethylene or propylene glycol based cooling systems. Also, it can be used to test the concentration of ethylene or propylene glycol in antifreeze liquids. Ideal for field use - the refractometer has ATC (Automatic Temperature Compensation) for precise measurement without having to re-calibrate after changes in ambient working temperature. Features * With Built-in Calibration Knob, no need for a mini-screwdriver * Needs ambient light only during test * Adjustable manual focusing * Soft rubber eye piece for comfortable viewing * Accurate testing results guaranteed * Extremely focus and easy-to-use * With non-slip grip * Clear chart, easy and comfortable reading of results * Made w/ highest and finest quality of aluminum & rubber making it lightweight, durable and last long Specifications Measuring Range: Ethylene Glycol: -60 - 0°C (0-66.6%) Propylene Glycol: -50 - 0°C (0-62.4%) Battery Fluids: 1.100 - 1.400sg Resolution Factor: Ethylene Glycol: 5°C Propylene Glycol: 5°C Battery Fluids: 0.01sg Automatic Temperature Compensation (ATC): 10-30°C (50-86°F) Set Includes 1 x Refractometer with Built-in Calibration Knob 1 x English Instruction Manual 1 x Pipette Sturdy Plastic carrying case ## Features - Measuring Range: Ethylene Glycol: -60°C ~ 0°C Propylene Glycol: -50°C ~ 0°C Battery : 1.100-1.400sg - Accuracy: Ethylene Glycol : ±5°C ; Propylene Glycol : ±5°C ; Battery: ±0.01sg - Monitor reliability of your battery charge & health condition - Ensure all is working properly and not causing problems like rust, prone to freezing, poor charging, poor cooling, etc - New Design with calibration knob, does not need screwdriver for calibration anymore, giving much more convenience to users ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | GAIN EXPRESS | | Model Number | RHAN-200ATC | | Product Dimensions | 22.91 x 7.59 x 5.11 cm; 281.23 g | | Material | Aluminium | | Item Weight | 281 g | ## Images ![New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point - Image 1](https://m.media-amazon.com/images/I/61g+wYSfwdL.jpg) ![New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point - Image 2](https://m.media-amazon.com/images/I/71NvGhOlBIL.jpg) ![New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point - Image 3](https://m.media-amazon.com/images/I/81jpqL8cGdL.jpg) ![New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point - Image 4](https://m.media-amazon.com/images/I/71bjCwJ8zhL.jpg) ![New Design Automotive Battery Antifreeze Refractometer with Calibration Knob ATC, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Fluids Specific Gravity, Battery Charge Test Cooling System Coolant Freezing Point - Image 5](https://m.media-amazon.com/images/I/61MfRft8sSL.jpg) --- ## 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.hr/products/52141901-new-design-automotive-battery-antifreeze-refractometer-with-calibration-knob-atc](https://www.desertcart.hr/products/52141901-new-design-automotive-battery-antifreeze-refractometer-with-calibration-knob-atc) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-06*