---
product_id: 10382737
title: "HI701 Checker HC Handheld Colorimeter for Free Chlorine"
brand: "hanna instruments"
price: "€ 125.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hanna Instruments"
url: https://www.desertcart.nl/products/10382737-hi701-checker-hc-handheld-colorimeter-for-free-chlorine
store_origin: NL
region: Netherlands
---

# 0.01 PPM resolution Large LCD screen Auto shut-off battery saver HI701 Checker HC Handheld Colorimeter for Free Chlorine

**Brand:** hanna instruments
**Price:** € 125.74
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead in water quality—precision testing made simple.

## Quick Answers

- **What is this?** HI701 Checker HC Handheld Colorimeter for Free Chlorine by hanna instruments
- **How much does it cost?** € 125.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/10382737-hi701-checker-hc-handheld-colorimeter-for-free-chlorine)

## 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

- • **Smart Power Management:** Auto shut-off feature extends battery life so your device is ready when you are.
- • **Clear Results Instantly:** Large LCD screen delivers easy-to-read digital results, eliminating guesswork and color matching.
- • **EPA-Approved Reliability:** Utilizes trusted DPD method ensuring compliance and confidence in every measurement.
- • **Precision at Your Fingertips:** Achieve ultra-accurate free chlorine readings with ±0.03 PPM accuracy, surpassing traditional chemical kits.
- • **Effortless One-Button Operation:** Simplify your testing routine with intuitive single-button use—no complex setup required.

## Overview

The Hanna Instruments HI701 Checker HC is a handheld colorimeter designed for precise free chlorine measurement in water. Featuring EPA-approved DPD methodology, 0.01 PPM resolution, and ±0.03 PPM accuracy, it offers superior reliability compared to chemical test kits. Its large LCD screen and single-button operation streamline testing, while auto shut-off conserves battery life. Ideal for professionals managing pools, spas, and environmental water quality, this compact ABS plastic device delivers fast, clear, and dependable results.

## Description

desertcart.com: Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine : Industrial & Scientific

Review: More flexible than it appears - Some instruments are purposely limited to encourage additional purchases. I believe this is one of those instruments. It appears there are several wavelengths and times for different measurements. The wavelengths are determined by the LED color while a resistor in the base of the unit apparently determines the countdown time. In summary, it means a single unit can be used to measure multiple parameters as long as the reagents and reaction times are correct. With two cuvettes, the free chlorine checker can be used for both free and total chlorine as well as other 525nm based tests. I tried this with free chlorine and total chlorine tests and think it is an excellent alternative to Taylor test kits. The Taylor kits (K2005 in particular) require matching light shades of pink to determine chlorine levels. Even holding up to light is not always conclusive and the measurement tolerance is roughly ±0.5 PPM. This meter yields an easy to read number. All the difficulties of pouring the reagent and setting the timer are eliminated if the user simply takes two samples, uses one as the control, and then manually times the wait period (1 minute for free chlorine, 2.5 minutes for total chlorine). Just before the time is completed, put in the unreacted sample, let the unit take the baseline measurement, and then insert the reacted sample and let the checker do its magic. I compared the results to the Taylor test kit and obtained relatively similar readings. The Taylor test kit I have is quite old and the reagents are well past expired (thus the reason for buying this checker). I also used this checker with the Taylor reagents and also obtained relatively similar readings. I purchased 100 test packs for both free and total chlorine so I am set for a while. Note that the Hanna reagents require pH less than 8.2. My pH was high and I did not get useable readings until I lowered the pH to below 8.0. This tester may also be used with other 525nm tests. I have a saltwater aquarium and wanted to check the phosphate/phosphorus levels. The HI 736-25 phosphorus reagents) measured 0.70 PPM. I don't have any algae problems so this seems reasonable. I recently ordered the HI 713-25 phosphate reagents and will compare the readings. I also have some HI 721-25 iron reagents but have not tested with it yet. If anything, I might recommend the Hanna Instruments HI 711 Total Chlorine checker for its 3.50 PPM range. The HI 701 is limited to 2.50 PPM. Both have 0.01 PPM resolution and ±0.03 PPM accuracy.
Review: Works perfectly - Accurate and easy to use

## Features

- More accurate than chemical test kits, less expensive than professional testing
- Single button operation for ease of use
- Uses EPA approved diethyl-p-phenylenediamine (DPD) method, for uses have these requirements
- Large LCD screen for readability
- Auto shut-off to extend battery life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003IKNJMA |
| Best Sellers Rank | #35,179 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Lab Colorimeters |
| Brand | Hanna Instruments |
| Brand Name | Hanna Instruments |
| Customer Reviews | 4.3 out of 5 stars 214 Reviews |
| Global Trade Identification Number | 00611517433696, 04016138661415 |
| Item Height | 50 inches |
| Item Weight | 0.3 Kilograms |
| Manufacturer | Hanna Instruments |
| Material Type | ABS Plastic |
| Ph Range | 0.00-2.50 |
| Recommended Uses For Product | Water Quality, Environmental Testing, Pools & Spas |
| Sterility Rating | 0.00-2.50 |
| UPC | 611517433696 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Hanna Instruments
- **Ph Range:** 0.00-2.50
- **Recommended Uses For Product:** Water Quality, Environmental Testing, Pools & Spas
- **Unit Count:** 1.0 Count
- **Manufacturer:** Hanna Instruments

## Images

![HI701 Checker HC Handheld Colorimeter for Free Chlorine - Image 1](https://m.media-amazon.com/images/I/71azkGEOM4L.jpg)

## Questions & Answers

**Q: Does the HI701 come with reagent?**
A: Yes, but not very many pillows.  The pillows are also over sized and less convenient to use then Hach.  The Hach reagent works with this unit just make sure it's the 10ml pillows.

**Q: How many ppm of free chlorine will this read up too**
A: Range 0.00ppm - 2.50 PPM

Thank you:)

**Q: Do you have to calibrate it before every single use or does one calibaration lasts a while ?**
A: You can buy a calibration kit for this. It's cheap. It has a clear vial and a pink vial that should read 1.00 and I check it every few months to make sure its still close. Same steps as a normal residual check
 The steps for every time you check the chlorine residual include a 'calibration' to the clear water before adding the packet.
Step one turn it on, shows C-1
Step two fill the vial with water and put it in and press the button
Step three, after it says C-2, take the vial out and add the packet.
Step four put it back it after a shake and press the button. Done.

**Q: The product data pdf provided in this listing states the Hanna analysis devices are manufactuered in their new state of art  European plant.  Correct?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ More flexible than it appears
*by B***T on February 16, 2014*

Some instruments are purposely limited to encourage additional purchases. I believe this is one of those instruments. It appears there are several wavelengths and times for different measurements. The wavelengths are determined by the LED color while a resistor in the base of the unit apparently determines the countdown time. In summary, it means a single unit can be used to measure multiple parameters as long as the reagents and reaction times are correct. With two cuvettes, the free chlorine checker can be used for both free and total chlorine as well as other 525nm based tests. I tried this with free chlorine and total chlorine tests and think it is an excellent alternative to Taylor test kits. The Taylor kits (K2005 in particular) require matching light shades of pink to determine chlorine levels. Even holding up to light is not always conclusive and the measurement tolerance is roughly ±0.5 PPM. This meter yields an easy to read number. All the difficulties of pouring the reagent and setting the timer are eliminated if the user simply takes two samples, uses one as the control, and then manually times the wait period (1 minute for free chlorine, 2.5 minutes for total chlorine). Just before the time is completed, put in the unreacted sample, let the unit take the baseline measurement, and then insert the reacted sample and let the checker do its magic. I compared the results to the Taylor test kit and obtained relatively similar readings. The Taylor test kit I have is quite old and the reagents are well past expired (thus the reason for buying this checker). I also used this checker with the Taylor reagents and also obtained relatively similar readings. I purchased 100 test packs for both free and total chlorine so I am set for a while. Note that the Hanna reagents require pH less than 8.2. My pH was high and I did not get useable readings until I lowered the pH to below 8.0. This tester may also be used with other 525nm tests. I have a saltwater aquarium and wanted to check the phosphate/phosphorus levels. The HI 736-25 phosphorus reagents) measured 0.70 PPM. I don't have any algae problems so this seems reasonable. I recently ordered the HI 713-25 phosphate reagents and will compare the readings. I also have some HI 721-25 iron reagents but have not tested with it yet. If anything, I might recommend the Hanna Instruments HI 711 Total Chlorine checker for its 3.50 PPM range. The HI 701 is limited to 2.50 PPM. Both have 0.01 PPM resolution and ±0.03 PPM accuracy.

### ⭐⭐⭐⭐⭐ Works perfectly
*by C***N on August 25, 2025*

Accurate and easy to use

### ⭐⭐⭐⭐ Limited range
*by F***Y on June 7, 2025*

It works well and is easy to use. Make sure you read the specifications. The range for Free Chlorine only goes up to 2.5.

## Frequently Bought Together

- Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine
- Hanna Intruments HI93701-01 Chlorine Reagents
- Hanna Instruments HI 711 Checker HC Handheld Colorimeter, For Total Chlorine

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*