How can the devices be controlled (red-y smart series)? 2015/12/14 How can the devices be controlled (red-y smart series)? What is required to let the smart series communicate to a PC? How large is the impact, when the operating conditions change (pressure and temperature)? Posted in FAQs Overview The measuring and regulating parameters of the red-y smart series and red-y industrial series can be read out or controlled in an analog, manual and digital manner.