---
product_id: 28519563
title: "MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid"
brand: "misco refractometer"
price: "$13.39"
currency: USD
in_stock: false
reviews_count: 1
url: https://www.desertcart.ec/products/28519563-misco-def-201-palm-abbe-digital-handheld-refractometer-urea-scale
store_origin: EC
region: Ecuador
---

# MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid

**Brand:** misco refractometer
**Price:** $13.39
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid by misco refractometer
- **How much does it cost?** $13.39 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/28519563-misco-def-201-palm-abbe-digital-handheld-refractometer-urea-scale)

## Best For

- misco refractometer enthusiasts

## Why This Product

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

## Description

The MISCO DEF-201 refractometer is the ideal method for testing and monitoring the concentration of urea-based Diesel Exhaust Fluid (DEF or AdBlue) required by diesel engines equipped with Selective Catalytic Reduction (SCR) technology. This refractometer has a single scale for DEF concentration.  Diesel Exhaust Fluid (DEF) is already a reality for trucks, buses, and highway vehicles powered by diesel engines. In 2014, new Tier IV guidelines go into effect for off-road equipment as well. These regulations will affect excavators, bulldozers, skid steers and other commercial construction equipment. Also affected are farm tractors and agricultural equipment, heavy forklifts, and airport ground service equipment. Even diesel powered stationary equipment such as generators, pumps, and compressors will be required to meet emission requirements. To comply with EPA regulations, engine manufacturers are using Selective Catalytic Reduction technology which requires a very precise concentration of liquid urea (DEF) in order to operate properly. MISCO refractometers meet or exceed the requirements of ASTM D7821 – 12, Standard Test Method for Field Test Determination of Urea Concentration in Diesel Exhaust Fluid (DEF). Even concentration variations of as little as +/-0.8% will prevent a DEF fluid from meeting the specifications mandated by International Standards Organization (ISO). DEF dilution or contamination can impact system performance and maintenance costs. The biggest contamination threat is water dilution but without the proper tools it is nearly impossible to know if a DEF supply has been diluted.Scale Fluid: Urea (NH2)2C0; Unit of Measure: % Weight/Weight; Range: 0 to 51; Resolution: 0.1; Precision: +/-0.1INCLUDES: MISCO Palm Abbe Refractometer, Protective Rubber Armor Jacket, Instruction ManualAn optional Rugged Case is available from our  store.

## Features

- MISCO OPTICAL-ENGINE Technology: Sapphire Optics, High Definition 1,024 Element Detector Array
- Stainless Steel Sample Well, Protective Evaporation Cover, Large 24-Character LCD, Display Backlight
- Easy to use: one button to take readings, one button to cycle through menu options
- Automatically calibrates itself to water; Automatic Temperature Compensation (ATC)
- Protective rugged rubber armor jacket; Made in the USA

## Images

![MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid - Image 1](https://m.media-amazon.com/images/I/61eN+rY4KYL.jpg)
![MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid - Image 2](https://m.media-amazon.com/images/I/71n18N5WNlL.jpg)
![MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid - Image 3](https://m.media-amazon.com/images/I/61UEY1PLolL.jpg)
![MISCO DEF-201 Palm Abbe Digital Handheld Refractometer, Urea Scale, Concentration of Urea-Based Diesel Exhaust Fluid - Image 4](https://m.media-amazon.com/images/I/51tigHCK4nL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Good value.
  

*by M***E on Reviewed in the United States 🇺🇸 on January 5, 2019*

Works great.

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**Shop now:** [https://www.desertcart.ec/products/28519563-misco-def-201-palm-abbe-digital-handheld-refractometer-urea-scale](https://www.desertcart.ec/products/28519563-misco-def-201-palm-abbe-digital-handheld-refractometer-urea-scale)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-06*