Control element for room temperature control with LC display and 5 control buttons. Used for individual room temperature control in heating and air conditioning technology. The controller is a constant room temperature controller for fan coils in 2- and 4-pipe systems and conventional heating or cooling systems. The room temperature controller works in both heating and cooling mode. The fan level can be switched manually or to automatic mode. Class of temperature controller: 1. Contribution to room heating energy efficiency: 1.0%. Complete device, to be used without frame.