--- product_id: 414749538 title: "Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm" brand: "hanna instruments" price: "R3789" currency: ZAR in_stock: true category: "Hanna Instruments" url: https://www.desertcart.co.za/products/414749538-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00 store_origin: ZA region: South Africa --- # ±0.03 ppm accuracy Large LCD digital display Auto shut-off for battery life Science2Education HI-701 Hanna Instruments Free Chlorine Checker, 0.00 ppm to 2.50ppm **Brand:** hanna instruments **Price:** R3789 **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?** R3789 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/414749538-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 - • **Battery Smart:** Auto shut-off extends battery life so your device is ready when you are. - • **Exceptional Value:** Professional-grade water testing without the professional price tag. - • **Effortless Operation:** One-button testing delivers instant, easy-to-read digital results every time. - • **Weatherproof Durability:** Designed to perform accurately in any environment, rain or shine. - • **Precision at Your Fingertips:** Get chlorine readings with ±0.03 ppm accuracy for reliable water safety. ## Overview The Science2Education HI-701 Hanna Instruments Free Chlorine Checker offers professional-level accuracy (±0.03 ppm) and a user-friendly digital interface to measure free chlorine in water from 0.00 to 2.50 ppm. Its large LCD display and auto shut-off feature ensure ease of use and extended battery life, making it an essential tool for pool, spa, and drinking water quality monitoring. ## 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. ## 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 | | Best Sellers Rank | #57,700 in Electronics ( See Top 100 in Electronics ) #60 in Household Battery Testers | | Brand Name | Hanna Instruments | | Customer Reviews | 4.4 4.4 out of 5 stars (232) | | Global Trade Identification Number | 00611517433696, 04016138661415 | | Item Weight | 0.3 Kilograms | | Manufacturer | Hanna Instruments | | Material Type | Plastic/Metal | | Model Number | HI-701 | | Number of Items | 1 | | Part Number | HI 701 | | Recommended Uses For Product | testing water quality in pools, spas, or drinking water | | Sterility Rating | 0.0-14.0 | | UPC | 611517433696 | | Unit Count | 1 Count | ## Product Details - **Brand:** Hanna Instruments - **Manufacturer:** Hanna Instruments - **Recommended uses for product:** testing water quality in pools, spas, or drinking water - **Unit count:** 1 Count - **pH range:** 0.0-14.0 ## 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: 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 ## 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.co.za/products/414749538-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00](https://www.desertcart.co.za/products/414749538-science2education-hi-701-hanna-instruments-free-chlorine-checker-0-00) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-25*