INKBIRD ITH-21-B Bluetooth Thermometer Hygrometer, Indoor Temperature Humidity Sensor with Large Screen Display, App Notification Alert, Free Data Storage Export for Home Office Greenhouse

Price: $19.99
(as of Jun 06, 2025 19:18:34 UTC – Details)

From the brand

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