The Shelly BLU H&T is a compact Bluetooth temperature and humidity sensor designed for accurate environmental monitoring in both indoor and outdoor environments. Its IP54-rated enclosure and long battery life make it suitable for locations where Wi-Fi sensors are impractical, such as garages, sheds, or outdoor areas.

Using low-power Bluetooth communication, the device connects to a Shelly BLU Gateway or compatible Shelly Plus, Pro, or Gen3 device acting as a Bluetooth proxy. Once connected, it enables real-time climate monitoring and automation, allowing Shelly systems to respond intelligently to changes in temperature or humidity.