---
product_id: 364454463
title: "Hanna Instruments HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests)"
brand: "hanna instruments"
price: "€ 61.54"
currency: EUR
in_stock: true
reviews_count: 11
category: "Hanna Instruments"
url: https://www.desertcart.de/products/364454463-hanna-instruments-hi-782-25-marine-nitrate-high-range-checker
store_origin: DE
region: Germany
---

# Expiration date & lot traceability Accurate marine nitrate range 0-75 ppm Pre-measured high purity reagents Hanna Instruments HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests)

**Brand:** hanna instruments
**Price:** € 61.54
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of your marine game with precision you can see!

## Quick Answers

- **What is this?** Hanna Instruments HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests) by hanna instruments
- **How much does it cost?** € 61.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/364454463-hanna-instruments-hi-782-25-marine-nitrate-high-range-checker)

## Best For

- hanna instruments enthusiasts

## Why This Product

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

## Key Features

- • **Marine-Grade Accuracy:** Specifically designed for saltwater samples with a wide detection range up to 75 ppm nitrate.
- • **Precision in Every Drop:** Pre-measured, high purity reagents ensure fast, reliable nitrate readings every time.
- • **Traceability You Can Trust:** Each reagent packet is marked with expiration date and lot number for full quality control.
- • **Effortless Testing Workflow:** Simply add the reagent packet to your sample—no mess, no guesswork, just instant results.
- • **Trusted by Aquarists Worldwide:** Consistently praised for accuracy and ease of use, making it a must-have for marine professionals.

## Overview

The Hanna Instruments HI 782-25 offers 25 pre-measured, high purity reagent tests designed for marine nitrate detection in saltwater samples from 0 to 75 ppm. Packets are clearly marked for traceability and optimized for use with the HI 782 Marine Nitrate High Range Checker, delivering fast, accurate, and consistent results trusted by aquarists globally.

## Description

Product description The HI782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Nitrate High Range Checker HC. These reagents follow the Zinc reduction method in which the reaction between nitrate and the reagent causes a pink tint in the sample. By simply adding the packet of HI782-25 reagent to the sample, the reaction will take place and the HI782 will determine the concentration from the color that is produced. The results will be displayed in ppm of nitrate (as NO3–). These reagents are designed to be used with saltwater samples that have an expected range of 0.0 to 75.0 ppm.FEATURESPre-made reagents for ease of usePrepared with high purity chemicalsMarked with expiration date and lot number for traceability Directions Simply add the HI782-25 reagent package to the sample, the reaction will occur, and the HI782 will determine the concentration of the color that is produced.

Review: Consistent and Well Packaged - These reagents do what they’re meant to do. They’re simple to use with the HI 782 checker and the readings have been consistent and accurate for me. The packets are well sealed and easy to open. You only get 25 tests, so last well for what you pay, so they’re not the cheapest per test, but Hannah reliability isn’t questionable.
Review: Good - Expensive but they are one of the best reagents out there Hanna testers are very good and used by many aquarists.

## Features

- Causes serious eye damage.
- Harmful to aquatic life with long lasting effects.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B098V2XKP6 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 22,682 in Pet Supplies ( See Top 100 in Pet Supplies ) 47 in Aquarium Test Kits |
| Colour | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (534) |
| Date First Available | 7 July 2021 |
| Item Form | Powder, Tablets |
| Item Weight | 32 g |
| Item model number | HI782-25 |
| Number of Items | 1 |
| Product Dimensions | 5.89 x 5.79 x 4.19 cm; 32 g |
| Quantity | 1 |

## Product Details

- **Brand:** Hanna Instruments
- **Global Trade Identification Number:** 00198715292268
- **Item form:** Powder, Tablets
- **Manufacturer:** Hanna Instruments

## Images

![Hanna Instruments HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests) - Image 1](https://m.media-amazon.com/images/I/512l5veYmYL.jpg)

## Questions & Answers

**Q: I ordered this and the regent powder is clumpy. Has anyone run into this problem? I'm concerned the test reading can be inaccurate because of this.**
A: My recent order was also clumpy and brownish in color.  My reading does not appear accurate.  Has anyone else verified?

**Q: Does this include the liquid h1781a-0?**
A: Don’t think so

## Customer Reviews

### ⭐⭐⭐⭐⭐ Consistent and Well Packaged
*by P***A on 8 February 2026*

These reagents do what they’re meant to do. They’re simple to use with the HI 782 checker and the readings have been consistent and accurate for me. The packets are well sealed and easy to open. You only get 25 tests, so last well for what you pay, so they’re not the cheapest per test, but Hannah reliability isn’t questionable.

### ⭐⭐⭐⭐⭐ Good
*by T***Y on 3 February 2026*

Expensive but they are one of the best reagents out there Hanna testers are very good and used by many aquarists.

### ⭐⭐⭐⭐⭐ Great
*by O***K on 4 January 2026*

Good quality

## Frequently Bought Together

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-13*