---
product_id: 238401624
title: "Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60"
brand: "brightwell aquatics"
price: "€ 34.34"
currency: EUR
in_stock: true
reviews_count: 5
category: "Brightwell Aquatics"
url: https://www.desertcart.com.cy/products/238401624-brightwell-aquatics-refractometer-calibration-standard-accurate-reference-for-the-calibration
store_origin: CY
region: Cyprus
---

# 35 ppt Salinity Standard Refractive Index 1.3394 Precise Specific Gravity 1.0264 Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60

**Brand:** brightwell aquatics
**Price:** € 34.34
**Availability:** ✅ In Stock

## Summary

> 🌟 Calibrate Like a Pro, Measure Like a Master!

## Quick Answers

- **What is this?** Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60 by brightwell aquatics
- **How much does it cost?** € 34.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/238401624-brightwell-aquatics-refractometer-calibration-standard-accurate-reference-for-the-calibration)

## Best For

- brightwell aquatics enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Parameter Reference:** Calibrate using specific gravity, refractive index, and conductivity for comprehensive reliability.
- • **Compact & Lightweight Design:** Easy to handle and store with a sleek 2x2x12 cm footprint and just 77 grams.
- • **Lab-Grade Calibration Accuracy:** Ensure your seawater refractometers and hydrometers deliver pinpoint precision every time.
- • **Boost Your Measurement Confidence:** Join top marine labs and professionals who trust RES60 for consistent, repeatable results.
- • **Industry-Trusted Salinity Standard:** 35 ppt salinity mirrors real ocean conditions for flawless equipment tuning.

## Overview

The Brightwell Aquatics RES60 Calibration Standard is a precision reference solution designed to calibrate seawater refractometers, hydrometers, and other density measuring instruments. Featuring 35 ppt salinity, a specific gravity of 1.0264, and a refractive index of 1.3394, it ensures accurate, reliable measurements essential for marine and scientific applications.

## Description

Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment. 35 ppt Salinity1. 0264 Specific Gravity1. 3394 Refractive Index53 uS/cm at 25 deg c

Review: Recommend - works as needed.
Review: Recommend! - Recommend!

## Features

- Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment
- 35 ppt Salinity
- 1. 0264 Specific Gravity
- 1. 3394 Refractive Index
- 53 uS/cm at 25 deg c

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078QWLZS5 |
| Best Sellers Rank | #45,436 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #40 in Lab Refractometers |
| Generic Name | Calibration Standard |
| Included Components | Refractometer Calibration Standard |
| Item Dimensions LxWxH | 20 x 20 x 120 Millimeters |
| Item Weight | 77 g |
| Item model number | RES60 |
| Manufacturer | Brightwell Aquatics |
| Net Quantity | 1 Count |
| Product Dimensions | 2 x 2 x 12 cm; 77 g |

## Images

![Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60 - Image 1](https://m.media-amazon.com/images/I/5173Yk3UDiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Recommend
*by A***R on 25 September 2020*

works as needed.

### ⭐⭐⭐⭐⭐ Recommend!
*by C***E on 7 February 2026*

Recommend!

### ⭐⭐⭐⭐⭐ Best for refractometer and marine keeping
*by R***T on 15 September 2026*

Incredibly useful and repeatedly used to re calibrate my refractometer for my marine tank. Most hobbyists suggest using RO for calibration which is nonsense and doesn’t work! Shake well each time before use 👍

## Frequently Bought Together

- Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60
- Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
- Continuum Reagents Refractometer Calibration Standard – Seawater Reference for Calibration of Density Measuring Equipment, 60 ml

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-10-20*