--- product_id: 647724302 title: "Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer" brand: "inkbird" price: "€ 47.01" currency: EUR in_stock: true reviews_count: 13 category: "Inkbird" url: https://www.desertcart.hr/products/647724302-inkbird-ith-21-b-bluetooth-room-thermometer-hygrometer store_origin: HR region: Croatia --- # 300 days offline data storage Bluetooth 5.0 for 230ft range Accurate ±0.5°C temp & 0-99% RH Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer **Brand:** inkbird **Price:** € 47.01 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your space with smart climate control—because comfort is the new luxury. ## Quick Answers - **What is this?** Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer by inkbird - **How much does it cost?** € 47.01 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/647724302-inkbird-ith-21-b-bluetooth-room-thermometer-hygrometer) ## Best For - inkbird enthusiasts ## Why This Product - Trusted inkbird brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Powered by 2 AA batteries delivering over 15 months of uninterrupted performance—set it and forget it. - • **Data-Driven Comfort:** Access up to 300 days of stored data and export 2 years of historical records for deep climate insights. - • **Precision Swiss Sensors:** Experience reliable, ultra-accurate temperature and humidity readings with ±0.5°C accuracy. - • **Vibrant & Clear Display:** Large 3.8-inch LCD screen with 3 comfort indicators for quick, effortless environmental checks. - • **Seamless Smart Monitoring:** Control and track your indoor climate remotely via Bluetooth and the intuitive INKBIRD app. ## Overview The Inkbird ITH-21-B is a Bluetooth-enabled digital thermometer and hygrometer featuring Swiss-made sensors for precise temperature (-20°C to 60°C) and humidity (0-99% RH) monitoring. Its large 3.8-inch LCD screen displays real-time data with comfort indicators, while Bluetooth 5.0 connectivity allows remote monitoring and control via the INKBIRD app up to 230ft away. It stores up to 300 days of offline data and supports exporting 2 years of historical records. Powered by 2 AA batteries, it offers over 15 months of continuous use, making it ideal for homes, offices, wine cellars, greenhouses, and more. ## Description Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer | Digital Temperature Humidity Meter with APP Control, Data Export for Home, Office, Wine Cellar, Greenhouse : desertcart.co.uk: Garden Review: Great little device. accurate, easy to use, and versatile! - Neat compact and modern looking. The display is clear and easy to read, showing both temperature and humidity at a quick glance. Setup was quick, and the Bluetooth connection to the app works well. I can monitor conditions and even export data if I want to track changes over seems spot on compared to my other devices. The ability to place it anywhere and still get app feedback makes it a great smart home upgrade. Highly recommend for anyone who needs to monitor indoor climate whether it’s for comfort, plant care, or wine storage. Review: Good range and accuracy - Firstly the whole unit looks and feels solid, easy to open and close the battery section without forcing or feeling like plastic is going to crack. The display is clear and large, which is good if you just want to glance at temperature and humidity as you're passing the greenhouse. And mostly, it's got a wide range of humidity and temperature, so can be used both in the inside and outside growing conditions. In comparison to standard hygrometers on the market this one is at great value for money given it's build, functionality and accuracy . ## Features - All-in-One Digital Thermometer: This digital thermometer and hygrometer features a bright 3.8-inch LCD screen for easy reading. It offers TH mode (temperature and humidity) and time mode to suit different needs. With 3 comfort indicators, it clearly displays temperature and humidity levels, helping you monitor your room climate effortlessly - Accurate detection: Equipped with Swiss-made sensors, this room thermometer ensures stable and reliable performance. It accurately measures temperatures from -20°C to 60°C and humidity levels from 0% RH to 99% RH. Trust its precision for consistent and dependable readings in any indoor environment - APP Control: Using advanced Bluetooth 5.0 technology, this thermometer connects to the INKBIRD app for remote monitoring. Control and track temperature and humidity changes within a range of 70m/230ft. Customize comfort ranges in the app to create a healthy and safe living environment tailored to your needs - Historical storage and export: This hygrometer thermometer stores up to 300 days of offline data and allows you to export up to 2 years of historical records to your computer via the app - Wide Application: Powered by 2*AA batteries (included), this indoor thermometer and hygrometer operates for over 15 months. Its versatile design makes it suitable for various spaces, including bedrooms, offices, wine cellars, greenhouses, and garages ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D66BH9V9 | | Battery Description | 2 AA batteries | | Battery description | 2 AA batteries | | Best Sellers Rank | 35,979 in Garden ( See Top 100 in Garden ) 154 in Hygrometers | | Brand | Inkbird | | Country Of Origin | China | | Customer Reviews | 4.5 out of 5 stars 117 Reviews | | Included Components | 1*ITH-21-B; 2*AA batteries; 1*user manual | | Item Length | 11.75 Centimetres | | Item Weight | 0.17 Kilograms | | Item weight | 0.17 Kilograms | | Manufacturer | Inkbird | | Manufacturer Part Number | ITH-21-B | | Model Number | ITH-21-B | | Mounting Type | Tabletop | | Mounting type | Tabletop | | Number of Items | 1 | | Temperature Accuracy | 0.5 | | Temperature Reading Accuracy | plus_minus_0_point_5_degrees_celsius | | Upper Temperature Rating | 60 Degrees Celsius | | Upper temperature rating | 60 Degrees Celsius | | Voltage | 3 Volts | ## Product Details - **Battery description:** 2 AA batteries - **Brand:** Inkbird - **Item weight:** 0.17 Kilograms - **Mounting type:** Tabletop - **Upper temperature rating:** 60 Degrees Celsius ## Images ![Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer - Image 1](https://m.media-amazon.com/images/I/61TU0khXB4L.jpg) ![Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer - Image 2](https://m.media-amazon.com/images/I/71VbPlyP7bL.jpg) ![Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer - Image 3](https://m.media-amazon.com/images/I/619lsmbwtqL.jpg) ![Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer - Image 4](https://m.media-amazon.com/images/I/71v0KIp5CyL.jpg) ![Inkbird ITH-21-B Bluetooth Room Thermometer Hygrometer - Image 5](https://m.media-amazon.com/images/I/71VTcrnBi8L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little device. accurate, easy to use, and versatile! *by J***S on 28 September 2025* Neat compact and modern looking. The display is clear and easy to read, showing both temperature and humidity at a quick glance. Setup was quick, and the Bluetooth connection to the app works well. I can monitor conditions and even export data if I want to track changes over seems spot on compared to my other devices. The ability to place it anywhere and still get app feedback makes it a great smart home upgrade. Highly recommend for anyone who needs to monitor indoor climate whether it’s for comfort, plant care, or wine storage. ### ⭐⭐⭐⭐⭐ Good range and accuracy *by T***Y on 2 November 2024* Firstly the whole unit looks and feels solid, easy to open and close the battery section without forcing or feeling like plastic is going to crack. The display is clear and large, which is good if you just want to glance at temperature and humidity as you're passing the greenhouse. And mostly, it's got a wide range of humidity and temperature, so can be used both in the inside and outside growing conditions. In comparison to standard hygrometers on the market this one is at great value for money given it's build, functionality and accuracy . ### ⭐⭐⭐⭐⭐ Excellent Quality *by S***N on 23 February 2026* Purchased to monitor temperatures in a greenhouse using Home Assistant. The phone app needs to be running to see temperatures but home assistant can monitor constantly and send alerts. This looks a high quality item and works really well at a very reasonable price. Not a bad app either. Bluetooth seems to work over a reasonable distance and battery life good. ## Frequently Bought Together - INKBIRD Bluetooth Smart Thermo-Hygrometer ITH-21-B Indoor Thermometer and Hygrometer 6-in-1 Temperature and Humidity Monitor with APP Control Custom Comfort Levels 2 Years History Export - Boveda Portable Travel 2-Way Humidity Resealable Bag – Waterproof & Dustproof - Preloaded with 69% RH Pack - Patented Technology - Large Storage For 60-80 Items – 1 Count - Boveda 65% Two-Way Humidity Control Pack For Aging & Long-Term Storage in Large Plastic & Wood Boxes – Size 320 – Single – Moisture Absorber – Humidifier Pack – Individually Wrapped Hydration Packet --- ## 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/647724302-inkbird-ith-21-b-bluetooth-room-thermometer-hygrometer](https://www.desertcart.hr/products/647724302-inkbird-ith-21-b-bluetooth-room-thermometer-hygrometer) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-16*