This smart temperature and humidity sensor is designed to help you and your family track and maintain optimal, comfortable environmental conditions for spaces such as living rooms, bedrooms, baby nurseries, greenhouses, wine cellars and storage areas. To operate this device, you will need a separately sold compatible smart hub and a secured 2.4 GHz Wi-Fi network connection. It communicates with the hub via Sub-1G low-power wireless protocol, which offers lower power consumption and wider coverage range compared to standard Wi-Fi connections. The device also features a crisp e-ink display, high-precision Swiss-made sensing components, 2 years of free data storage, and up to 2 years of battery life for long-term, hassle-free monitoring.