Interra KNX RF 4-Channel Universal Interface, which can be individually parameterized, can be used as analog or binary inputs. It incorporates up to 4 independent Thermostats for the control of Heating and/or Cooling of 4 different zones. It is a perfect solution for use in conventional installations without placing KNX bus cables. Communication with the KNX Bus must be carried out using a KNX RF S-Mode media coupler. Interra KNX RF 4 Channel Universal Interface detects the status changes at its inputs and sends telegrams according to ETS configuration. In addition, it also allows the measurement of the temperature and the management of temperature alarms.