--- product_id: 647724302 title: "ITH-21-B Bluetooth Room Thermometer Hygrometer | Digital Temperature Humidity Meter with APP Control, Data Export for Home, Office, Wine Cellar, Greenhouse" brand: "inkbird" price: "NZ$52" currency: NZD in_stock: true category: "Inkbird" url: https://www.desertcart.nz/products/647724302-ith-21-b-bluetooth-room-thermometer-hygrometer-digital-temperature-humidity store_origin: NZ region: New Zealand --- # 300 days offline data storage + 2 years export Bluetooth 5.0 for seamless app control 15+ months battery life on 2 AA batteries ITH-21-B Bluetooth Room Thermometer Hygrometer | Digital Temperature Humidity Meter with APP Control, Data Export for Home, Office, Wine Cellar, Greenhouse **Brand:** inkbird **Price:** NZ$52 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay cool, dry, and in control—anywhere, anytime! ## Quick Answers - **What is this?** ITH-21-B Bluetooth Room Thermometer Hygrometer | Digital Temperature Humidity Meter with APP Control, Data Export for Home, Office, Wine Cellar, Greenhouse by inkbird - **How much does it cost?** NZ$52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/647724302-ith-21-b-bluetooth-room-thermometer-hygrometer-digital-temperature-humidity) ## 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 - • **Data-Driven Comfort:** Analyze up to 300 days of stored data and export 2 years of historical records to optimize your living or workspace climate. - • **Precision Swiss Sensors:** Experience ultra-accurate temperature (-20°C to 60°C) and humidity (0-99% RH) readings with ±0.5°C reliability. - • **Smart Remote Monitoring:** Stay effortlessly connected with Bluetooth 5.0 and the INKBIRD app, tracking your environment up to 230ft away. - • **Versatile & Long-Lasting:** Perfect for bedrooms, offices, wine cellars, and greenhouses, powered by 2 AA batteries delivering over 15 months of uninterrupted use. - • **Vibrant 3.8-inch LCD Display:** Quickly assess your room’s temperature, humidity, and comfort level with a bright, easy-to-read screen. ## Overview The Inkbird ITH-21-B is a Bluetooth-enabled digital thermometer and hygrometer featuring Swiss-made sensors for precise indoor climate monitoring. It offers a bright 3.8-inch LCD, app connectivity with 230ft range, 300 days of offline data storage, and 2 years of exportable history. Powered by 2 AA batteries, it delivers over 15 months of reliable operation, ideal for professional and home environments alike. ## 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 ## 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 | | Best Sellers Rank | 26,014 in Garden ( See Top 100 in Garden ) 123 in Hygrometers | | Brand | Inkbird | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (117) | | Included Components | 1*ITH-21-B; 2*AA batteries; 1*user manual | | Item Length | 11.75 Centimetres | | Item Weight | 0.17 Kilograms | | Manufacturer | Inkbird | | Manufacturer Part Number | ITH-21-B | | Model Number | ITH-21-B | | 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 | | Voltage | 3 Volts (DC) | ## Product Details - **Battery description:** 2 AA batteries - **Brand:** Inkbird - **Item weight:** 0.17 Kilograms - **Mounting type:** Tabletop - **Upper temperature rating:** 60 Degrees Celsius ## Images ![ITH-21-B Bluetooth Room Thermometer Hygrometer | Digital Temperature Humidity Meter with APP Control, Data Export for Home, Office, Wine Cellar, Greenhouse - Image 1](https://m.media-amazon.com/images/I/61TU0khXB4L.jpg) ## Available Options This product comes in different **Size** options. ## 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.nz/products/647724302-ith-21-b-bluetooth-room-thermometer-hygrometer-digital-temperature-humidity](https://www.desertcart.nz/products/647724302-ith-21-b-bluetooth-room-thermometer-hygrometer-digital-temperature-humidity) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-08-25*