iElegance Series Thermostat, (Buspro)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/hotel-system/hdl-mpac01-48-air-condition-switch
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/hotel-system/hdl-mpac01-48-air-condition-switch