---
product_id: 215610323
title: "Atago 4491(PAL-91S) Digital Pocket Ethylene Glycol Refractometer (°C scale)"
brand: "atago"
price: "€ 917.26"
currency: EUR
in_stock: true
reviews_count: 1
category: "Atago"
url: https://www.desertcart.sk/products/215610323-atago-4491-pal-91s-digital-pocket-ethylene-glycol-refractometer-c
store_origin: SK
region: Slovakia
---

# 0.4% glycol accuracy AAA battery powered 3-second rapid reading Atago 4491(PAL-91S) Digital Pocket Ethylene Glycol Refractometer (°C scale)

**Brand:** atago
**Price:** € 917.26
**Availability:** ✅ In Stock

## Summary

> 📊 Master your coolant game with precision and speed!

## Quick Answers

- **What is this?** Atago 4491(PAL-91S) Digital Pocket Ethylene Glycol Refractometer (°C scale) by atago
- **How much does it cost?** € 917.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/215610323-atago-4491-pal-91s-digital-pocket-ethylene-glycol-refractometer-c)

## Best For

- atago enthusiasts

## Why This Product

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

## Key Features

- • **Speedy Results:** Get reliable measurements in just 3 seconds, so you can keep your workflow moving without delays.
- • **Compact & Portable:** Lightweight 220g design fits in your pocket—take professional-grade testing wherever your job demands.
- • **Effortless Calibration:** Zero your device instantly with a simple water calibration—maintain peak performance with minimal hassle.
- • **Precision that Matters:** Achieve ultra-accurate glycol concentration readings with 0.4% accuracy—never second guess your coolant quality.
- • **Smart Temperature Compensation:** Automatic temperature adjustment ensures every reading is spot-on, no matter the environment.

## Overview

The Atago 4491(PAL-91S) Digital Pocket Ethylene Glycol Refractometer delivers fast, highly accurate glycol concentration and freezing point measurements with a user-friendly 3-digit LCD display. Powered by two AAA batteries, it features automatic temperature compensation and easy calibration, making it an essential tool for professionals monitoring industrial fluids and coolants on the go.

## Description

Use these digital refractometers to easily monitor the quality of your water-soluble industrial fluids and coolants. Operation is easy - place a few drops of sample on the prism, press the start key, and the measurement is displayed in three seconds. Display the freezing point by pressing the start key for two seconds while the concentration ( percent ) is indicated. Calibration is also simple - clean off the prism, add water and press the zero key. Digital display ensures accurate readings units are ideal for measuring coolant levels in antifreeze and deicing solutions. Automatic temperature compensation makes sample measurements quick and easy.

Review: Five Stars - ok

## Features

- Accuracy: 0.4 percent (glycol)
- Battery type: aaa battery (2)
- Display type: 3-digit lcd
- Resolution: 0.2 percent (glycol)
- Temperature accuracy: 1°c

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NG2DW4U |
| Batteries Required? | No |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | 20 Oct. 2010 |
| Item Package Quantity | 1 |
| Item Weight | 220 g |
| Item model number | 4491(PAL-91S) |
| Manufacturer | Cole-Parmer |
| Measurement System | US |
| Package Dimensions | 15.3 x 10 x 6.8 cm; 220 g |
| Part number | 4491(PAL-91S) |

## Images

![Atago 4491(PAL-91S) Digital Pocket Ethylene Glycol Refractometer (°C scale) - Image 1](https://m.media-amazon.com/images/I/41izCZE-R6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Five Stars
*by C***D on 21 February 2017*

ok

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-03*