About This

6-in-1 Display: The INKBIRD ITH-21-B features a large LCD display which includes temperature, humidity, comfort level, time, date, and week. You can know these information with a glance of the sensor. Temperature measurement range: -4°F~140°F (-20°C—60°C); humidity measurement range: 0%RH-99%RH
Upgraded Bluetooth 5.0: The Bluetooth Thermo-hygrometer, equipped with the latest 5.0 Bluetooth technology, offers a stable and reliable connection up to 230 feet/70 meters (obstruction-free). You can easily monitor the temperature and humidity levels in your home
High Accuracy & Quick Response: With a built-in Swiss-made sensor, the temperature is accurate to ±0.36°F (±0.2°C) and humidity is ±2%RH. Samples every 3 seconds which allows you to monitor the environments in real time. Supports max/min display through past 24 hrs
Smart App Control: VPD, dew point, comfort level setting, notifications, data history and calibration all can be set up via our smart app INKBIRD. The free data storage feature allows you to access data from the app for up to 2 years in Cloud and up to 300 days on the sensor itself
Ultra-Long Battery Life: Low battery consumption, up to 15+ months using the included 2 AA batteries. Reduce the trouble of frequent battery replacement. Suitable for continuous temperature and humidity monitoring in nursery room, wine cellars, greenhouses, etc

Overview

Brand : Inkbird
Special Feature : Bluetooth 5.0 Technology, Fast Refresh, High Accuracy, Large Display
Color : 1
Age Range (Description) : Adult
Included Components : 2 AA batteries, manual
Outer Material : Plastic
Display Type : Digital
Connectivity Technology : Bluetooth
Product Care Instructions : Wipe Clean
Power Source : Battery Powered

Keep your tech gear in good condition with basic care: wipe down
with a soft, dry cloth and avoid exposing electronics to extreme
heat, moisture, or direct sunlight for extended periods. If your
item includes a specific care label or instructions, please follow
those first. For items with batteries or charging components, use
only the cables and chargers included or recommended for that
product.

Product dimensions, compatible devices, and technical specifications
are listed in the images and description above. Please check these
details carefully before purchasing, especially for cases, cables,
and mounts designed for specific device models. If you're unsure
whether an item fits your device, feel free to contact us before
ordering.