Object temperature controller with button interface K.1 in polar white, glossy finish. The object room temperature controller is designed for individual room control and features a tamper-proof design. Operating modes include comfort, standby, night setback, as well as frost and heat protection. It allows for continuous or switched regulation and can be used in both heating and cooling modes. Heating or cooling in two stages is possible. The valve protection is configurable, as is the behavior upon bus voltage recovery. The controller is equipped with a programming button and a red programming LED. Additionally, it offers four independent binary inputs for potential-free contacts, which can be configured as either four binary inputs or as two to three binary inputs and one to two outputs. The integrated bus coupler enables bus connection via a terminal block, while the binary inputs and outputs are equipped with screw terminals. Installation is done flush-mounted in surface or design programs.