Surface Mount Temp. Humidity & LUX Sensors, (Buspro)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/Sensorss/hdl-masth-2c-ceiling-mount-temp-humidity-lux-senso
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/Sensorss/hdl-masth-2c-ceiling-mount-temp-humidity-lux-senso