---
product_id: 11613409
title: "Nitrate Reefer Test Kit for Saltwater Aquariums - Lab-Grade Precision - 40 Tests - Glass Vials - Slide Comparator Included"
brand: "nyos"
price: "€ 40.14"
currency: EUR
in_stock: true
reviews_count: 13
category: "Nyos"
url: https://www.desertcart.ie/products/11613409-nitrate-reefer-test-kit-for-saltwater-aquariums-lab-grade-precision
store_origin: IE
region: Ireland
---

# 40 reliable tests per kit Lab-grade precision Made in Germany quality Nitrate Reefer Test Kit for Saltwater Aquariums - Lab-Grade Precision - 40 Tests - Glass Vials - Slide Comparator Included

**Brand:** nyos
**Price:** € 40.14
**Availability:** ✅ In Stock

## Summary

> ⚡ Keep your reef thriving with precision you can trust!

## Quick Answers

- **What is this?** Nitrate Reefer Test Kit for Saltwater Aquariums - Lab-Grade Precision - 40 Tests - Glass Vials - Slide Comparator Included by nyos
- **How much does it cost?** € 40.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/11613409-nitrate-reefer-test-kit-for-saltwater-aquariums-lab-grade-precision)

## Best For

- nyos enthusiasts

## Why This Product

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

## Key Features

- • **Premium Quality Reagents:** Manufactured under EN ISO 9001 with AAS & NIST standard validation.
- • **Consistent Results Every Time:** Calibrated German dropper guarantees uniform dosing and reproducibility.
- • **Lab-Grade Accuracy for Reef Tanks:** Experience precision tailored for complex seawater chemistry.
- • **Exceptional Value for Professionals:** 40 tests per kit deliver unbeatable price-performance for serious aquarists.
- • **User-Friendly with Intuitive Instructions:** Easy-to-follow pictograms make testing effortless and error-free.

## Overview

The NYOS Nitrate Reefer Aquarium Test Kit offers 40 highly accurate nitrate tests specifically designed for saltwater reef tanks. Manufactured in Germany with strict quality controls and calibrated droppers, it ensures reproducible lab-quality results at an affordable price, making it the go-to choice for professional and hobbyist aquarists who demand precise water parameter monitoring.

## Description

The NYOS REEFER Nitrate Test Kit enables highly sensitive lab-grade measurements in the 1–160 mg/l NO3 range. Precision slide comparator and glass sample vials for maximum accuracy.

Review: Best nitrate test kit I’ve ever used! - I’ve used a lot of test kits- from Red Sea, to salifert and API, but this is fins down the BEST overall kit I’ve ever used. It’s not just the wider color differentiations, or the increased result comparison options…it’s the little details. You get TWO vials, so you can look down thru a vial of sample water w/o reagents side-by-side next to your colored test sample- this gives you a much more accurate idea of resulting color- in addition to the foam comparator that holds the two samples together over the color chart. I feel like this separates and focuses the lighting over the samples, while focusing your eye more readily over the samples, which gives a more accurate comparison to judge your result by. I’d give this kit 10 stars if I could! I read some reviews with complaints about the dropper in the test reagent 1, but I didn’t experience any of those issues. I’m SO glad I chose this kit, and will never use any other kit!
Review: Is easy to use - The color chart is very easy to read.

## Features

- Precise Nitrate Testing: Developed for saltwater, this kit offers highly sensitive measurements ranging from 1–160 mg/l NO3.
- Professional Monitoring: Includes a professionally calibrated color chart with differentiated color gradations for accurate readings.
- Innovative Design: Features a precision slide comparator and glass sample vials for enhanced measurement accuracy.
- Reliable Quality: All reagents manufactured per EN ISO 9001 in Germany and subject to strict quality controls.
- Complete Set: 40 tests included with easy-to-follow pictogram instructions for consistent, reproducible results every time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ONI38TK |
| Best Sellers Rank | #70,960 in Pet Supplies ( See Top 100 in Pet Supplies ) #114 in Aquarium Test Kits |
| Brand | NYOS |
| Brand Name | NYOS |
| Customer Reviews | 4.4 out of 5 stars 335 Reviews |
| Item Form | Liquid |
| Item Weight | 3.04 ounces |
| Liquid Volume | 10 Milliliters |
| Manufacturer | Nyos Aquatics |
| Manufacturer Part Number | 4260246920005 |
| Model Number | WT-NO3R |
| Target Species | Fish |
| Unit Count | 1.00 Count |

## Product Details

- **Brand:** NYOS
- **Item Form:** Liquid
- **Liquid Volume:** 10 Milliliters
- **Manufacturer:** NYOS Aquatics

## Images

![Nitrate Reefer Test Kit for Saltwater Aquariums - Lab-Grade Precision - 40 Tests - Glass Vials - Slide Comparator Included - Image 1](https://m.media-amazon.com/images/I/61wHXs1NM2L.jpg)
![Nitrate Reefer Test Kit for Saltwater Aquariums - Lab-Grade Precision - 40 Tests - Glass Vials - Slide Comparator Included - Image 2](https://m.media-amazon.com/images/I/61ZoKmlSOOL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best nitrate test kit I’ve ever used!
*by J***Y on February 17, 2024*

I’ve used a lot of test kits- from Red Sea, to salifert and API, but this is fins down the BEST overall kit I’ve ever used. It’s not just the wider color differentiations, or the increased result comparison options…it’s the little details. You get TWO vials, so you can look down thru a vial of sample water w/o reagents side-by-side next to your colored test sample- this gives you a much more accurate idea of resulting color- in addition to the foam comparator that holds the two samples together over the color chart. I feel like this separates and focuses the lighting over the samples, while focusing your eye more readily over the samples, which gives a more accurate comparison to judge your result by. I’d give this kit 10 stars if I could! I read some reviews with complaints about the dropper in the test reagent 1, but I didn’t experience any of those issues. I’m SO glad I chose this kit, and will never use any other kit!

### ⭐⭐⭐⭐⭐ Is easy to use
*by R***E on April 30, 2025*

The color chart is very easy to read.

### ⭐⭐⭐⭐ Good Saltwater Nitrate Test, but not Great. Much Better than API test kits for nitrates.
*by M***N on August 23, 2015*

I like this kit, but I can't say I love it. It is pretty accurate and not too difficult to use but I would like more resolution and I don't like the bottle that is used for adding drops of reagent. The bottle seems like it is more than 1/2 empty and is not the best bottle I have seen. It feels kind of cheap and fragile. I would have preferred that you raise the price, get a better bottle and then fill it. I also have not really fell in love with adding the powder. Its not bad but opening and closing the little glass vial makes me think I am going to slip and end up spreading it around the room. The little vials for water are great. They are the same as the powder, but for liquids they are not as bad since it is only water. And I like the lids better than the test for the API test kits. The color comparitor is beautifully printed and accurate, but I wish it was a little heavier and better waterproofed. It is better than the API test, but I don't love it right now. (I wish Hanna would make a colorimeter for saltwater nitrates)

## Frequently Bought Together

- NYOS Nitrate test kit
- Salifert Carbonate Hardness & Alkalinity (Kh/Alk) Test Kit, 100-200 Tests

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-06-07*