--- product_id: 293534255 title: "Salinity Refractometer for Aquarium Seawater Marine Fishkeeping" brand: "hallocool" price: "$41.98" currency: USD in_stock: true category: "Hallocool" url: https://www.desertcart.us/products/293534255-salinity-refractometer-for-aquarium-seawater-marine-fishkeeping store_origin: US region: United States of America --- # Dual-scale precision (0-100‰ & 1.000-1.070 SG) Automatic Temperature Compensation (ATC) Durable aluminum & ABS rubber build Salinity Refractometer for Aquarium Seawater Marine Fishkeeping **Brand:** hallocool **Price:** $41.98 **Availability:** ✅ In Stock ## Summary > 🌊 Master your marine world with pinpoint salinity precision! ## Quick Answers - **What is this?** Salinity Refractometer for Aquarium Seawater Marine Fishkeeping by hallocool - **How much does it cost?** $41.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/293534255-salinity-refractometer-for-aquarium-seawater-marine-fishkeeping) ## Best For - hallocool enthusiasts ## Why This Product - Trusted hallocool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Rugged aluminum and ABS rubber construction resists rust and abrasion for long-term use. - • **All-in-One Kit:** Comes complete with plastic case, mini screwdriver, dropper, and cleaning cloth for on-the-go convenience. - • **Effortless Accuracy:** Automatic Temperature Compensation ensures fast, reliable readings regardless of environment. - • **User-Friendly Design:** Simple 2-3 drop sample application with clear optical eyepiece for instant results. - • **Precision in Every Drop:** Measures salinity on two essential scales for versatile, professional-grade accuracy. ## Overview The Hallocool Salinity Refractometer is a professional-grade tool designed for aquarium and marine fishkeeping enthusiasts. It offers dual-scale salinity measurement (0-100‰ and 1.000-1.070 specific gravity) with automatic temperature compensation for accurate, fast readings. Built from durable aluminum and ABS rubber, it resists rust and abrasion, ensuring longevity. The device is easy to use with a simple drop sample method and includes a full accessory kit, making it the ultimate companion for maintaining optimal saltwater conditions. ## Description desertcart.com : Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation (ATC) : Pet Supplies ## Features - MEASURES ON 2 SCALES - Aquarium Refractometer features specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰ , allow to get two results in different units by one test - WIDELY USE - Salinity Refractometer measures saltwater, salinity of water or seawater, ideal for aquariums, marine monitoring, fish-keeping, and saltwater pools - ATC FUNCTION - Saltwater refractometer with automatic temperature compensation (ATC) function, allow you to obtain the accurate result faster and easier - EASY TO USE - Put 2-3 drops of sample on the refracotmter’s prism, towards light, read the accurate readings through the optics eyepiece directly - DURABLE MATERIAL: The optic salinity tester is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion. Portable Refractometer comes with plastic case, mini screwdriver,a dropper and a cleaning cloth ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08TJ28XC1 | | ASIN | B08TJ28XC1 | | Best Sellers Rank | #20,155 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Aquarium Hydrometers | | Brand Name | Hallocool | | Customer Reviews | 4.5 4.5 out of 5 stars (581) | | Date First Available | January 20, 2021 | | Date First Available | January 20, 2021 | | Item Package Dimensions L x W x H | 8.07 x 3.31 x 2.13 inches | | Item Weight | 9.2 ounces | | Manufacturer | Hallocool | | Manufacturer | Hallocool | | Package Dimensions | 8.07 x 3.31 x 2.13 inches; 9.17 ounces | | Target Audience Keyword | Fish, marine fish-keeping aquairum saltwater testing | ## Images ![Salinity Refractometer for Aquarium Seawater Marine Fishkeeping - Image 1](https://m.media-amazon.com/images/I/61sdTgf7zcL.jpg) ## Questions & Answers **Q: can I use this to test road brine concentration? (calcium chloride)** A: i don’t see why not…any saltwater could be tested for its saltiness. **Q: where will this be shipped from?** A: Hello. These items will be shipped from US Amazon warehouse. **Q: Is this product accurate enough to test well water for salinity?** A: Yes, this salinity refractometer can measure salt water or salinity of water, ideal for aquariums and marine monitoring. It's accurate. **Q: when calibrating to 0, what counts as distilled or fresh water?** A: After doing some research, apparently you don’t want to calibrate to 0. The reason for the 35ppt calibration fluid is it will lose accuracy the further away you get away from the calibration level. So you want to calibrate as close to the level that you plant to use it at as possible. ## Frequently Bought Together - Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation (ATC) - API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit - Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving --- ## 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.us/products/293534255-salinity-refractometer-for-aquarium-seawater-marine-fishkeeping](https://www.desertcart.us/products/293534255-salinity-refractometer-for-aquarium-seawater-marine-fishkeeping) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-04*