Tapo T315 is the one temperature and humidity monitor you need for your coziest home. Requiring Tapo Hub H100 (sold separately) and a 2.4GHz Wi-Fi connection, it makes it easy and simple to monitor your home condition. Tapo T315 uses the Swiss-made sensor to monitor with high accuracy, and real-time data of your home’s temperature and humidity updating every 2 seconds. Check the data from any angle, even under the bright sunlight with its 2.7” E-Ink display which has 180° viewing angle. Connect with Tapo app for complete experience including real-time notifications for any temperature or humidity fall outside of your customized range and smart devices connection for home automation. Invite all family members to monitor on their own via device sharing to make the monitoring easier and store & export data to cloud for your record. Tapo T315 has long living performance with just 2 AAA battery (included in package) which lasts up to 2 years. (*Battery life of up to 2 years is based on TP-Link’s laboratory results under normal use. Actual battery life may vary depending on working conditions.) Place the temperature monitor anywhere you desire with multiple installment options including our 3M adhesive that comes with the package.*Note: This device operates exclusively within the specified Sub-1G band. Please note that different regions support different frequency bands. Ensure that the devices or hubs you intend to use are compatible with the same Sub-1G band.