INKBIRD ITH-13-B Hygrometer Thermometer 2-Pack Indoor Room Temperature Humidity Monitor with App Notification Mini Bluetooth Digital Humidity Sensor with Data Storage for Home Incubator Greenhouse

High-precision sensor: Equipped with Swiss-made Sensirion sensors, temperature measurement will also be accurate to ±0.2°C (±0.36°F), humidity measurement is accurate to ±2%. Samples each 3 seconds which lets you monitor the environments in real time
Bluetooth 5.0 technology: This upgrade Bluetooth technology enables it to has longer connection distance as much as 230 ft. More stable connection and faster transmission speed
Data Storage with Export: This home temperature monitor device can store as much as 300 days of offline temperature and humidity data. You’ll be able to view and export 2 years of historical data to further analyze indoor temperature and humidity
Long battery life: Powered by the included 2 AAA batteries, the battery life is as much as 8 months, keeping up long-term stable 24/7 accurate recording. Suitable for continuous temperature and humidity monitoring in nursery rooms, bedrooms, wine cellars, basements, and so forth
Compact Size with Large Digits: Small and conveyable, suitable for placement in more than a few small spaces; provides two installation methods: desktop placement and wall hanging to satisfy different home layout requirements