Today having a look at Shelly's battery operated sensor to see how it works and how to use it in a few typical scenario.
Amazon UK link:
https://www.amazon.co.uk/Shelly-Temperature-Humidity-Sensor/dp/B07NDXXH79
Shelly Shop link:
https://shop.shelly.cloud/shelly-h-t-wifi-smart-home-automation#61
