--- product_id: 493852540 title: "Digital thermometer 3.0" brand: "juwel aquarium" price: "FREE" currency: HKD in_stock: false category: "Juwel Aquarium" url: https://www.desertcart.hk/products/493852540-digital-thermometer-3-0 store_origin: HK region: Hong Kong --- # 24-inch immersion depth Large digital display Battery included, ready to use Digital thermometer 3.0 **Brand:** juwel aquarium **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌡️ Stay Cool, Stay Precise — Your Aquarium’s Temperature Guardian ## Quick Answers - **What is this?** Digital thermometer 3.0 by juwel aquarium - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/493852540-digital-thermometer-3-0) ## Best For - juwel aquarium enthusiasts ## Why This Product - Trusted juwel aquarium brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready Out of the Box:** Comes with battery installed so you can start monitoring instantly—no delays, no fuss. - • **Precision at a Glance:** Accurate temperature readings with a high-sensitivity sensor for both fresh and saltwater aquariums. - • **Effortless Installation:** Includes suction cup for quick, secure attachment—no tools or hassle required. - • **Universal Compatibility:** Works flawlessly with all aquarium brands and sizes up to 24 inches immersion depth. - • **Seamless Style Integration:** Sleek, modern design that perfectly complements your Juwel or any other aquarium setup. ## Overview The JUWEL Aquarium Digital Thermometer 3.0 offers precise, reliable temperature monitoring with a large, easy-to-read digital display. Designed for both fresh and saltwater tanks, it fits seamlessly into any aquarium setup with a sleek modern look and simple suction cup installation. Battery included and ready to use, it supports immersion depths up to 24 inches, ensuring your aquatic environment stays perfectly balanced. ## Description Digital thermometer 3.0 : desertcart.co.uk: Pet Supplies ## Features - Warning:Not suitable for children under 10 months. - Large display - Modern design - Precise temperature monitoring - Suitable for fresh and sea water - Suitable for all aquariums ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09B17QX43 | | Age Range Description | All life stages | | Age range (description) | All life stages | | Best Sellers Rank | 68,476 in Pet Supplies ( See Top 100 in Pet Supplies ) 112 in Aquarium Thermometers | | Brand | Juwel Aquarium | | Colour | Black, transparent | | Connectivity Technology | Wired | | Country Of Origin | United Kingdom | | Customer Reviews | 4.3 out of 5 stars 392 Reviews | | Display Type | Digital | | Immersion Depth | 24 Inches | | Included Components | Display, sensor, battery, suction cup | | Included components | Display, sensor, battery, suction cup | | Indoor Outdoor Usage | Indoor | | Item Length | 10 Centimetres | | Item Type Name | aquarium thermometer | | Item Weight | 74 Grams | | Lower Temperature Rating | 16 Degrees Celsius | | Manufacturer | JUWEL Aquarium AG & Co. KG | | Manufacturer Part Number | 85703 | | Model Name | JUWEL Aquarium - Digital Thermometer 3.0 - passend für alle Aquarien | | Model Number | 85703 | | Number of Batteries | 1 AA batteries required. (included) | | Outer Material | Plastic | | Outer material | Plastic | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Product Warranty | 2 Year | | Reusability | Rechargeable | | Special Features | Large Display | | Special feature | Large Display | | Style Name | Modern | | Unit Count | 1.0 count | | Upper Temperature Rating | 30 Degrees Celsius | ## Product Details - **Age range (description):** All life stages - **Brand:** Juwel Aquarium - **Colour:** Black, transparent - **Connectivity technology:** Wired - **Display type:** Digital - **Included components:** Display, sensor, battery, suction cup - **Outer material:** Plastic - **Product care instructions:** Wipe Clean - **Special feature:** Large Display - **Unit count:** 1.0 count ## Images ![Digital thermometer 3.0 - Image 1](https://m.media-amazon.com/images/I/71mT2A78brL.jpg) ![Digital thermometer 3.0 - Image 2](https://m.media-amazon.com/images/I/71RU7w0W6LL.jpg) ![Digital thermometer 3.0 - Image 3](https://m.media-amazon.com/images/I/51utUtxrolL.jpg) ![Digital thermometer 3.0 - Image 4](https://m.media-amazon.com/images/I/81gfc6uZ9nL.jpg) ## Questions & Answers **Q: Can you tell me how to place the battery and which direction the positive terminal is facing?** A: Positive side up **Q: How long does it take for the probe to be left in the fish tank to display the temperature? Why does it always show 24.3 degrees on your tape?** A: It should start picking up the temperature straight away so after 5 minutes (probably very much less) it should be giving the correct temperature. 24.3 is just the temperature shown on the box, wouldn't make a lot of sense to show a blank screen 🤔 ## Frequently Bought Together - JUWEL Aquarium - Digital Thermometer 3.0 - Suitable for all aquariums - Juwel Vacuum Cleaner for Aquarium Aqua Clean 2.0 - Jewel Air Diffuser --- ## 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.hk/products/493852540-digital-thermometer-3-0](https://www.desertcart.hk/products/493852540-digital-thermometer-3-0) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-20*