--- product_id: 250991912 title: "HI755 Checker HC Low Range Saltwater Aquarium Water Testing Alkalinity Colorimeter" brand: "hanna instruments" price: "€ 141.39" currency: EUR in_stock: true reviews_count: 9 category: "Hanna Instruments" url: https://www.desertcart.hr/products/250991912-hi755-checker-hc-low-range-saltwater-aquarium-water-testing-alkalinity store_origin: HR region: Croatia --- # ±0.1 meq/L accuracy Large LCD for clear readings Auto shut-off extends battery life HI755 Checker HC Low Range Saltwater Aquarium Water Testing Alkalinity Colorimeter **Brand:** hanna instruments **Price:** € 141.39 **Availability:** ✅ In Stock ## Summary > 🌊 Master your marine environment with pinpoint alkalinity accuracy! ## Quick Answers - **What is this?** HI755 Checker HC Low Range Saltwater Aquarium Water Testing Alkalinity Colorimeter by hanna instruments - **How much does it cost?** € 141.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/250991912-hi755-checker-hc-low-range-saltwater-aquarium-water-testing-alkalinity) ## 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 - • **Visual Clarity:** Large LCD screen ensures easy readability even in low light - • **Compact & Portable:** Handheld design fits perfectly in your toolkit for on-the-go testing - • **Effortless Operation:** Single-button use makes testing quick and hassle-free - • **Smart Power Management:** Auto shut-off feature maximizes battery efficiency for longer use - • **Precision at Your Fingertips:** More accurate than chemical test kits for reliable marine alkalinity readings ## Overview The Hanna Instruments HI755 Checker HC is a handheld colorimeter designed for precise, cost-effective alkalinity testing in saltwater aquariums. Offering superior accuracy over chemical kits, a user-friendly single-button interface, and a large LCD display, it ensures quick, reliable results. Its auto shut-off feature conserves battery life, making it an essential tool for marine enthusiasts and professionals seeking consistent water quality monitoring. ## Description The HI755 Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity. Crucial in marine environments, alkalinity provides both the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, as well as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI755 provides quick, accurate results in a few easy steps.FEATURESEasier to use and more accurate than chemical test kitsDedicated to a single parameterSmall size, big convenienceIdeal for: Water Quality, Environmental, Education, Industrial Review: Well worth having - Easy to use. Good instructions. Only takes a few minutes to do a test. Hanna quality is great. Makes it easier to test your phosphorous levels. Not a bad price either. Review: Accuracy and easy to use - Bought this so I can calibrate my auto tester. Super easy to use. Clear instructions. Repeatable results. Bought all 3 testers for the parameters I test for regularly. ## Features - More accurate than chemical test kits, less expensive than professional testing - Single button operation for ease of use - Large LCD screen for readability - Auto shut-off to extend battery life ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C2GWEL8 | | Batteries | 1 AAA batteries required. | | Best Sellers Rank | #56,055 in Pet Supplies ( See Top 100 in Pet Supplies ) #87 in Aquarium Test Kits | | Date First Available | March 28, 2013 | | Department | men, women | | Item Weight | 12.3 ounces | | Item model number | TE-HI755 | | Manufacturer | Hanna Instruments | | Package Dimensions | 7.6 x 4.92 x 2.64 inches | ## Images ![HI755 Checker HC Low Range Saltwater Aquarium Water Testing Alkalinity Colorimeter - Image 1](https://m.media-amazon.com/images/I/41xdopzqXJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well worth having *by G***S on January 7, 2026* Easy to use. Good instructions. Only takes a few minutes to do a test. Hanna quality is great. Makes it easier to test your phosphorous levels. Not a bad price either. ### ⭐⭐⭐⭐⭐ Accuracy and easy to use *by E***N on June 12, 2024* Bought this so I can calibrate my auto tester. Super easy to use. Clear instructions. Repeatable results. Bought all 3 testers for the parameters I test for regularly. ### ⭐⭐⭐⭐⭐ quick *by J***S on February 5, 2026* super easy to use ## Frequently Bought Together - Hanna Marine Alkalinity Checker HI755 - Hanna Instruments Hanna Marine Magnesium Checker HC HI783 Saltwater Aquariums, Marine, Aquaculture Applications Magnesium Tester 64 grams - Hanna Instruments High Range Nitrate Checker HI782 --- ## 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.hr/products/250991912-hi755-checker-hc-low-range-saltwater-aquarium-water-testing-alkalinity](https://www.desertcart.hr/products/250991912-hi755-checker-hc-low-range-saltwater-aquarium-water-testing-alkalinity) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-26*