---
product_id: 69943006
title: "4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid"
brand: "aichose"
price: "₨865"
currency: SCR
in_stock: true
reviews_count: 13
category: "Aichose"
url: https://www.desertcart.sc/products/69943006-4-in-1-def-antifreeze-coolant-refractometer-for-automobile-antifreeze
store_origin: SC
region: Seychelles
---

# DEF urea 30%-35% conc. Battery acid gravity 1.10-1.40 kg/l Freeze point -50 to 0℃ 4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid

**Brand:** aichose
**Price:** ₨865
**Availability:** ✅ In Stock

## Summary

> 🚗 Stay Cool, Charged & Compliant — The Ultimate 4-in-1 Auto Fluid Guardian

## Quick Answers

- **What is this?** 4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid by aichose
- **How much does it cost?** ₨865 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/69943006-4-in-1-def-antifreeze-coolant-refractometer-for-automobile-antifreeze)

## Best For

- aichose enthusiasts

## Why This Product

- Trusted aichose brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wide Temperature Range:** Accurately measures freezing points from -50℃ to 0℃ for ultimate winter readiness.
- • **4-in-1 Precision Testing:** One device, four critical fluid checks—antifreeze, battery acid, washer fluid, and DEF.
- • **DEF Concentration Control:** Ensures diesel exhaust fluid stays within the optimal 30%-35% urea range for emissions compliance.
- • **Battery Health at a Glance:** Specific gravity readings from 1.10 to 1.40 kg/l reveal your battery’s charge status instantly.
- • **Auto Temperature Compensation:** Smart tech adjusts readings for temperature, delivering fast, reliable results every time.

## Overview

The 4-in-1 Automobile Refractometer is a compact, precision tool designed for professional-grade testing of key automotive fluids. It measures antifreeze freezing points (-50 to 0℃), battery acid specific gravity (1.10-1.40 kg/l), windshield washer fluid freeze points (-40 to 0℃), and diesel exhaust fluid urea concentration (30%-35%). Featuring automatic temperature compensation, it delivers fast, accurate readings to keep your vehicle running smoothly and compliant year-round.

## Description

Buy 4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid: Antifreezes & Coolants - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Takes the Guesswork Out of Coolant Checks! - I bought this 4-in-1 DEF Antifreeze Coolant Refractometer to check my antifreeze mix, and it works perfectly. Super easy to use right out of the box—just a drop of fluid and you get an instant, accurate reading. The numbers are clear and easy to read, and it even covers DEF and battery acid checks. Feels solid and well-built. This tool takes all the guessing out of coolant testing—highly recommend for any car owner or DIY mechanic.
Review: Great to have - Very hand to have if you have a diesel truck that uses def works great to measure to make sure it is inspect

## Features

- Function 1: Measuring freezing point of automobile antifreeze based on ethylene glycol or propylene glycol.Measuring Range: -50 to 0 ℃.
- Function 2: Measuring specific gravity of battery acid and provide a quick reference of battery charge condition.Measuring Range:1.10 to 1.40 kg/l
- Function 3: Measuring windshield washer fluid based on ethanol or isopropyl alcohol.Measuring Range:-40 to 0 ℃
- Function 4:Measuring Urea Concentration in automobile diesel exhaust fluid (DEF).Measuring Range:30% to 35%
- Features automatic temperature compensation: makes it even easier to get fast results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DLDZFJX |
| Best Sellers Rank | #9,866 in Automotive ( See Top 100 in Automotive ) #51 in Antifreezes & Coolants |
| Date First Available | June 7, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.4 ounces |
| Manufacturer | Xindacheng |
| Product Dimensions | 6.5 x 1.5 x 1.5 inches |

## Images

![4-in-1 DEF Antifreeze Coolant Refractometer for Automobile Antifreeze System, Diesel Exhaust Fluid, Battery Acid and Windshield Washer Fluid - Image 1](https://m.media-amazon.com/images/I/61UUU90yfmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Takes the Guesswork Out of Coolant Checks!
*by M***E on October 13, 2025*

I bought this 4-in-1 DEF Antifreeze Coolant Refractometer to check my antifreeze mix, and it works perfectly. Super easy to use right out of the box—just a drop of fluid and you get an instant, accurate reading. The numbers are clear and easy to read, and it even covers DEF and battery acid checks. Feels solid and well-built. This tool takes all the guessing out of coolant testing—highly recommend for any car owner or DIY mechanic.

### ⭐⭐⭐⭐⭐ Great to have
*by P***L on December 4, 2025*

Very hand to have if you have a diesel truck that uses def works great to measure to make sure it is inspect

### ⭐⭐⭐⭐⭐ Def tester no more guessing by date
*by B***H on January 27, 2026*

Great optics solid tester lightweight comes with all you need and case

## Frequently Bought Together

- 4-in-1 DEF Antifreeze Coolant Refractometer 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 8001-B Coolant Test Strip (Determine When to Replace Automotive Coolant - 100 Test Strips)

---

## 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.sc/products/69943006-4-in-1-def-antifreeze-coolant-refractometer-for-automobile-antifreeze](https://www.desertcart.sc/products/69943006-4-in-1-def-antifreeze-coolant-refractometer-for-automobile-antifreeze)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-20*