---
product_id: 655054481
title: "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"
brand: "inkbird"
price: "NT$1005"
currency: TWD
in_stock: true
reviews_count: 5
url: https://www.desertcart.tw/products/655054481-bluetooth-smart-thermo-hygrometer-ith-21-b-indoor-thermometer-hygrometer
store_origin: TW
region: Taiwan
---

# ±0.2°C Swiss precision sensor 2 years data history export Bluetooth 5.0 remote control 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

**Brand:** inkbird
**Price:** NT$1005
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of comfort with smart precision and effortless control!

## Quick Answers

- **What is this?** 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 by inkbird
- **How much does it cost?** NT$1005 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/655054481-bluetooth-smart-thermo-hygrometer-ith-21-b-indoor-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:** Enjoy over 15 months of uninterrupted monitoring with included AA batteries—no frequent recharging needed.
- • **Data-Driven Comfort:** Access and export up to 2 years of detailed temperature and humidity history to optimize your environment.
- • **Custom Comfort Alerts:** Set personalized temperature and humidity ranges via app to ensure your space always feels just right.
- • **Precision You Can Trust:** Swiss Sensirion sensors deliver ultra-accurate temperature and humidity readings with ±0.2°C and ±2% RH accuracy.
- • **Seamless Bluetooth 5.0 Connectivity:** Monitor and control indoor climate remotely up to 230ft for ultimate convenience.

## Overview

The INKBIRD ITH-21-B is a Bluetooth-enabled 6-in-1 thermo-hygrometer featuring a large LCD display, Swiss-made precision sensors with ±0.2°C accuracy, and customizable comfort alerts. It offers remote monitoring up to 230ft, stores up to 2 years of indoor climate data with export capability, and runs on long-lasting AA batteries for over 15 months of continuous use—perfect for professionals who demand precise environmental control and data insights.

## Description

Full description not available

## Features

- 6-in-1 Thermo-Hygrometer: This new INKBIRD temperature and humidity detector has a large 3.8-inch LCD screen that displays the current temperature and humidity, comfort level indicators, and the current time and date. Its two display modes, TH mode (mainly by temperature and humidity) and Time mode (mainly by time), are specially designed for different usage needs. You can also check the maximum and minimum values for the past 24 hours/48 hours/ALL times at any time.
- Bluetooth 5.0 Connectivity: The ITH-21-B adopts advanced Bluetooth 5.0 technology, so you can control it with your smartphone and remotely monitor the indoor temperature and humidity changes at an obstacle-free distance of up to 70m/230ft. You can customize the temperature and humidity comfort ranges in the app according to your family's physical quality condition, to confirm whether the indoor temperature and humidity are comfortable or not, ensuring a healthy and safe living environment for your family.
- High Measurement Accuracy: It is equipped with Swiss-made precision sensors from world-renowned Sensirion, which are more accurate, more stable, and more reliable. Its temperature measurement accuracy reaches ±0.2°C (±0.36°F) in a wide temperature range of -20°C-60°C (-4°F~140°F) and humidity accuracy reaches ±2% in a humidity range of 0%RH-99%RH, making it a better choice than most temperature and humidity detectors on the market.
- 2-Year History Storage & Export: The device itself can store up to 300 days of offline temperature and humidity data. The exact data capacity varies with the recording intervals, 1min/2min/5min/10min, which can be selected on the INKBIRD app. All data is automatically uploaded to the app via the Bluetooth connection and you can view 2 years of history on the app graph and export the required data to your computer via email for further study of indoor temperature and humidity.
- 15+ Months Battery Life: There is no need for repeated recharging or frequent battery replacement, which is more convenient and environmentally friendly. The long battery life makes it suitable for continuous temperature and humidity monitoring in any indoor space such as bedrooms, offices, wine cellars, greenhouses, garages, helping you to maintain an optimal environment for your family, pets or delicate objects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Inkbird |
| Product Dimensions | 11.8W x 6.9H Centimeters |
| Item Weight | 0.17 Kilograms |
| Battery Description | 2 AA batteries |
| Mounting Type | Tabletop |
| Upper Temperature Rating | 60 Degrees Celsius |
| Voltage | 3 Volts (DC) |
| Temperature Accuracy | 0.2 |
| Temperature Reading Accuracy | plus_minus_0_point_2_degrees_celsius |
| Manufacturer | INKBIRD |
| Model number | ITH-21-B |
| Number of Memory Sticks | 1 |
| Special Feature | Alarm, High Accuracy |
| Item Weight | 170 g |
| Batteries | 2 AA batteries required. (included) |
| Item model number | ITH-21-B |
| Connectivity Technology | Bluetooth |
| Power Source | Battery Powered |
| Included Components | Meat Thermometer |
| Battery type | 2 AA batteries |
| Are batteries included? | Yes |

## Product Details

- **Brand:** Inkbird
- **Product Dimensions:** 11.8W x 6.9H Centimeters
- **Item Weight:** 0.17 Kilograms
- **Battery Description:** 2 AA batteries
- **Mounting Type:** Tabletop

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61TU0khXB4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Got what I wanted. Great product
*by S***V on 30 August 2025*

This is exactly the product I wanted. This watch is powered by two AA batteries and not usb charged which would have been better though. But I got few features with this, switchable time / temp.& humidity. It is quite accurate. Wanted a clock that could connect with phone to regularly update the time delay which happens to anlalog or independent digital watch, so it syncs with gps time of phone just by connecting to the app. Plus it also shows pressure and dew point in the app with trends of day/week/month/year which is quite accurate. Gives you comfort levels of temp. and humidity which you can also set according to your choice. Lastly the price is quite reasonable as you get very less features at this price. Quality is great, easy to use , compact size and great functionality. What else is required.

### ⭐⭐⭐⭐⭐ Simple and works well
*by S***N on 17 June 2025*

Great to have something portable. Clean UI with at a glance information about temp and humidity. Haven’t used the app as the information on the display is more than adequate. Seems accurate and sensitive to daily changing weather conditions.

### ⭐⭐⭐⭐⭐ Good product
*by S***R on 9 September 2025*

Worth of money good product 99% accuracy and build quality also 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

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-24*