Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD
Inkbird ITH-21-B Operation Guide

INKBIRD

Bluetooth Hygrometer Thermometer ITH-21-B

€21,99
Free Shipping
30-Day Easy Return
1-Year Warranty
Key Features
  • 6-in-1 Indoor Monitor: Temperature, humidity, time, and date on one screen
  • Bluetooth 5.0 Range: 230ft/70m open-area connection
  • Swiss Industrial-Grade Precision: ±0.36°F/±0.2°C for temperature, ±2% for humidity
  • 3.8‑Inch Large Display: Two viewing modes for different needs
  • Custom Comfort Range: Adjustable temp/humidity levels for sensitive groups
  • Storage Capacity: 300 days offline logging + 2-year cloud history with data export
  • Temp Alerts: High/low notifications via Bluetooth connection
  • Long Battery Life: 15+ months on included AA batteries
Highlights
Specs
FAQ
Reviews
 

6-in-1 Thermo-Hygrometer with 3.8" LCD

The large 3.8-inch LCD screen clearly displays current temperature and humidity, comfort level indicators, and current time and date. TH mode and Time mode for different needs.

Remote Monitoring with Bluetooth 5.0

Bluetooth 5.0 connectivity allows remote app monitoring of indoor temperature and humidity from up to 230ft/70m away. Comfort ranges can be set based on your family's needs for a healthy and safe living environment.

High-Precision Swiss Sensirion Sensors

Thanks to the Swiss-made sensors, this thermo-hygrometer is more accurate, more stable and more reliable than other temperature and humidity detectors on the market.

2-Year History Storage & Export

Store up to 300 days of offline temperature and humidity data. All data will be automatically synced with the app upon Bluetooth connection. 2 years of history can be viewed and exported from the app.

15+ Months Battery Life

With two supplied AA batteries, this indoor temperature and humidity monitor can run for over 15 months, making it ideal for continuous monitoring in any indoor space such as bedrooms, offices, and wine cellars.

Product Overview

 

Specs

Model:

ITH-21-B

Dimension:
3.82 x 2.56 x 1.02 inches / 97 x 65 x 26 mm
Screen:
3.8-inch LCD
Sensor:
Swiss Sensirion Industrial Grade
Powered by:
2 AA batteries (2500mAh)
Battery Life:
at least 15 months
Bluetooth:
BLE 5.0 (230ft/70m open distance)
Temp Range:
-4℉~140℉/

-20℃~60℃
Temp Accuracy:
±0.36°F / ±0.2℃
Humidity Range:
0~99 % RH
Humidity Accuracy:
±2% (non-condensing)
Sampling Time:
3 seconds
Recording Interval:
1/2/5/10min (custom in the app)
Max/Min Values Recording:
24h/48h/ALL time
Data Storage:
Up to 300 days on-board data,

2 years in-app data
Package Contents:

Thermometer Hygrometer ITH-21-B *1,

AA Batteries *2, User Manual *1

Compare with Others

Appearance:

 Bluetooth Hygrometer Thermometer ITH - 21 - B - INKBIRD WiFi Hygrometer Thermometer IBS - TH5 - WiFi - INKBIRD WiFi Hygrometer Thermometer IBS - TH3 WIFI PLUS - INKBIRD
Model:

ITH-21-B

IBS-TH5-WIFI

IBS-TH3-WIFI PLUS
WiFi: x 2.4GHz x
Bluetooth: Bluetooth 5.0 x x
Data Display: Time, Date, Day of the Week, Temp, Humidity, Comfort Time, Date, Weather, Temp, Humidity, Comfort, Environment Temp, Humidity, Comfort
Battery:  2*AA batteries 2000mAh Li-ion battery 500mAh Li-ion battery
Screen: LCD eInk LCD
Battery Life: 15 months 12 months 6 months
Recording Interval: 1/2/5/10min 10/30/60min 10/30/60/120/180/240min
Sampling Interval: 3 seconds 2 seconds 10 seconds
Temp Range: -4℉~140℉/

-20℃~60℃		 32℉~122℉/

0℃~50℃		 32℉~122℉/

0℃~50℃
Temp Accuracy: ±0.36°F / ±0.2℃ ±0.36°F / ±0.2℃ ±0.5°F / ±0.3℃
Humidity Range: 0~99 % RH 0~99 % RH 0~99 % RH
In-App Data Storage:

 2 Years

 2 Years

 1 Year
 

Frequently Asked Questions

Can I set alarms for temperature and humidity on ITH-21-B?

Yes, you can set both high and low alarms for temperature and humidity. If the device is connected via Bluetooth, the app will notify you when the readings exceed or fall below the set thresholds.

Is the ITH-21-B waterproof?

No, the ITH-21-B is not waterproof. This thermo-hygrometer is designed for indoor use only, and should not be exposed to water or other liquids.

Does ITH-21-B require a gateway or hub?

No, ITH-21-B connects directly to your smartphone app via Bluetooth 5.0.

How do I export ITH-21-B recorded data?

The ITH-21-B allows you to export up to 2 years of recorded data as a CSV file to your computer via email. Go to the 'History' tab, select the desired data, and tap on the 'Export' button.

How does the ITH-21-B mount?

The built-in mounting bracket allows for wall mounting or tabletop placement.