Dominik Schemhaus

It's an Shelly1 with Humidity and Temperature Sensor. https://shelly.cloud/knowledge-base/devices/shelly-ht/ The Sensor could also bought seperate. https://shop.shelly.cloud/temperature-sensor-addon-for-shelly-1-1pm-wifi-smart-home-automation#312

But the AddOn Module could run on every Shelly 1 & PM or the retail H&T Module on USB.