Room temperature controller without >local operation< and without internal temperature sensor. Universal input with: - max. 5 binary inputs - 4 binary inputs and 1 analog input for controlling sensors with external power supply 1-10V/0-10V - 2 binary inputs and 1 analog input for controlling sensors with external power supply 1-10V/0-10V and an external temperature sensor PT1000 / 6226T / DP4-T-1. Master/slave operation. With base load operation. The bus connection is made via the included bus terminal. Class of the temperature controller: 1 Contribution to room heating energy efficiency: 1.0%. From ETS4: Commissioning via native ETS application