---
product_id: 220267549
title: "Brightwell Aquatics Refractometer Calibration Standard"
brand: "brightwell aquatics"
price: "HK$189"
currency: HKD
in_stock: true
reviews_count: 9
category: "Brightwell Aquatics"
url: https://www.desertcart.hk/products/220267549-brightwell-aquatics-refractometer-calibration-standard
store_origin: HK
region: Hong Kong
---

# Brightwell Aquatics Refractometer Calibration Standard

**Brand:** brightwell aquatics
**Price:** HK$189
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Brightwell Aquatics Refractometer Calibration Standard by brightwell aquatics
- **How much does it cost?** HK$189 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/220267549-brightwell-aquatics-refractometer-calibration-standard)

## 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

## Description

Brightwell Aquatics Refractometer Calibration Standard : desertcart.co.uk: Business, Industry & Science

Review: Stay well away, reads wrong. Make your own solution instead - I bought this product as I was about to run out of the acurasea that I had previously been using and I couldn't get more of that brand, I was shocked when I put this on my refractometer and it read as 1.030. I had a feeling this wasn't right and after searching sone forums I found I wasn't the only person to have this issue. To be sure that it wasn't the old solution I did a few things to check, I tested the old solution to check it definitely read correct, I tested my tank to see what that read, I tested my tank with a hydrometer which although not perfect read as expected and I made my own solution to test. I then put all three of these into a hydrometer and that said the brightwell was also wrong compared to the others. All of these test showed me that the product infact reads wrong and doesn't calibrate a refractometer properly. I would stay well away from this product, it will make you think all of your equipment is faulty and doubt everything you use to test. My advice is to either get acurasea that I know to be accurate or do some googling and make your own solution. It will save you alot of confusion and work.
Review: Badly inaccurate , do not buy - calibrated my hydrometer from distilled water to 0 and this read 1.030 compare to my tank reading of 0.025 and a home made sodium chloride reading of 0.025, I would stay well away, you will do damage with this product.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078QWLZS5 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 15,022 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 76 in Liquid Analysis Instrumentation |
| Customer Reviews | 4.2 4.2 out of 5 stars (367) |
| Date First Available | 26 Oct. 2018 |
| Item Weight | 77 g |
| Item model number | RES60 |
| Product Dimensions | 2 x 2 x 12 cm; 77 g |
| Quantity | 1 |

## Images

![Brightwell Aquatics Refractometer Calibration Standard - Image 1](https://m.media-amazon.com/images/I/5173Yk3UDiL.jpg)
![Brightwell Aquatics Refractometer Calibration Standard - Image 2](https://m.media-amazon.com/images/I/81EIOuqDMHL.jpg)

## Customer Reviews

### ⭐ Stay well away, reads wrong. Make your own solution instead
*by A***X on 16 November 2020*

I bought this product as I was about to run out of the acurasea that I had previously been using and I couldn't get more of that brand, I was shocked when I put this on my refractometer and it read as 1.030. I had a feeling this wasn't right and after searching sone forums I found I wasn't the only person to have this issue. To be sure that it wasn't the old solution I did a few things to check, I tested the old solution to check it definitely read correct, I tested my tank to see what that read, I tested my tank with a hydrometer which although not perfect read as expected and I made my own solution to test. I then put all three of these into a hydrometer and that said the brightwell was also wrong compared to the others. All of these test showed me that the product infact reads wrong and doesn't calibrate a refractometer properly. I would stay well away from this product, it will make you think all of your equipment is faulty and doubt everything you use to test. My advice is to either get acurasea that I know to be accurate or do some googling and make your own solution. It will save you alot of confusion and work.

### ⭐ Badly inaccurate , do not buy
*by A***R on 7 January 2021*

calibrated my hydrometer from distilled water to 0 and this read 1.030 compare to my tank reading of 0.025 and a home made sodium chloride reading of 0.025, I would stay well away, you will do damage with this product.

### ⭐ Not satisfied
*by B***N on 25 February 2021*

Reads at 39 ppt

## 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

---

## 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.hk/products/220267549-brightwell-aquatics-refractometer-calibration-standard](https://www.desertcart.hk/products/220267549-brightwell-aquatics-refractometer-calibration-standard)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-25*