---
product_id: 53697383
title: "Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm"
brand: "hanna instruments"
price: "€ 223.69"
currency: EUR
in_stock: true
reviews_count: 9
category: "Hanna Instruments"
url: https://www.desertcart.nl/products/53697383-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00
store_origin: NL
region: Netherlands
---

# ±0.03 ppm accuracy Large LCD digital display Auto shut-off battery saver Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm

**Brand:** hanna instruments
**Price:** € 223.69
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of water quality with instant, precise chlorine checks!

## Quick Answers

- **What is this?** Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm by hanna instruments
- **How much does it cost?** € 223.69 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/53697383-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00)

## 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

- • **Effortless Operation:** One-button testing delivers instant, reliable results—no expertise needed.
- • **Clear, Crisp Readouts:** Large LCD screen ensures easy reading even in low light or harsh weather.
- • **Affordable Professionalism:** Exceptional price point bridges the gap between test strips and costly instruments.
- • **Battery Life That Keeps Up:** Auto shut-off feature extends battery life so you’re never caught off guard.
- • **Precision at Your Fingertips:** Get lab-grade free chlorine readings with ±0.03 ppm accuracy every time.

## Overview

The Science2Education HI-701 Hanna Instruments Free Chlorine Checker offers professional-grade accuracy (±0.03 ppm) and a user-friendly digital interface to measure free chlorine levels from 0.00 to 2.50 ppm. Designed for quick, reliable testing with a large LCD display and auto shut-off to conserve battery life, it’s the perfect tool for pool managers and water quality pros seeking precision without complexity.

## Description

Product Description The HI 701 Hanna 'Free' Checker bridges the gap between simple chemical test kits and professional instrumentation. With an accuracy of +/-0.03 mg/L (ppm) and 0.01 mg/L (ppm) resolution it provides digital readout of Free Chlorine levels in water. A real world first - with the Hanna Free Chlorine Checker you can check for chlorine at the touch of a button and get instant results. Directions Dip the test strip in a solution, then compare the color change with the table provided

Review: a good - very simple to use a accurate, a good instrument
Review: Works well but... - UPDATE: June 2019: I switched to using LaMotte DPD1 tablets as more consistently accurate than 'Total'. I also use instrument grade' test tablets NOT 'visual grade'. ------------------------------- Bought to use with salt-based indoor pool. Works fine. Hanna reagents are expensive but comparison testing shows it works fine with Total Pool DPD 1 Comparator/Rapid Tablets (100 for £5.99 elsewhere on web). Only one cap is included for use with cuvettes (vials). Replacements are extortionate. Recommend following procedure: Fill both cuvettes with sample, cap one cuvette and add reagent to the other. Carry out testing as described in manual. Switch cap to second cuvette before insertion in tester.

## Features

- Easy to use - whatever the weather
- Accurate results every time
- Exceptional price
- Large LCD display
- Auto shut-off ensures longer battery life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003IKNJMA |
| Batteries | 2 A batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 61,160 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 103 in Lab pH Meters |
| Customer Reviews | 4.4 4.4 out of 5 stars (217) |
| Date First Available | 17 Aug. 2011 |
| Item Package Quantity | 1 |
| Item Weight | 300 g |
| Item model number | HI-701 |
| Manufacturer | Hanna Instruments |
| Material | Plastic/Metal |
| Part number | HI 701 |
| Product Dimensions | 127 x 127 x 127 cm; 300 g |

## Product Details

- **Brand:** Hanna Instruments
- **Manufacturer:** Hanna Instruments
- **Recommended uses for product:** Free Chlorine in Water
- **Unit count:** 1 chlorine checker
- **pH range:** 0.00-2.50

## Images

![Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm - Image 1](https://m.media-amazon.com/images/I/71azkGEOM4L.jpg)

## Questions & Answers

**Q: can this detect chloramines**
A: No.  This measures only "Free Chlorine". The Hanna reagent is same as DPD 1 tablets (instrument grade). I understand that to measure Chloramines you need to also measure "Total Chlorine" using a "HI-711 Total Chlorine Checker" with their reagent (same as DPD 3 tablet). The difference between the "free chlorine" reading and "total chlorine" reading gives the "combined chlorine" otherwise know as "chloramines".

## Customer Reviews

### ⭐⭐⭐⭐⭐ a good
*by J***N on 14 July 2014*

very simple to use a accurate, a good instrument

### ⭐⭐⭐ Works well but...
*by A***R on 26 October 2016*

UPDATE: June 2019: I switched to using LaMotte DPD1 tablets as more consistently accurate than 'Total'. I also use instrument grade' test tablets NOT 'visual grade'. ------------------------------- Bought to use with salt-based indoor pool. Works fine. Hanna reagents are expensive but comparison testing shows it works fine with Total Pool DPD 1 Comparator/Rapid Tablets (100 for £5.99 elsewhere on web). Only one cap is included for use with cuvettes (vials). Replacements are extortionate. Recommend following procedure: Fill both cuvettes with sample, cap one cuvette and add reagent to the other. Carry out testing as described in manual. Switch cap to second cuvette before insertion in tester.

### ⭐⭐⭐⭐⭐ Great stuff
*by N***L on 23 May 2022*

Easy to use DosE wot it says will be buying the nitrate next

## 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

---

## 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.nl/products/53697383-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00](https://www.desertcart.nl/products/53697383-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-06*