The KNX ST/K1.2 electromechanical valve actuator enables precise control of heating and cooling valves while ensuring secure communication via KNX Data Secure. It is equipped with an integrated temperature sensor and an integrated room temperature controller. It delivers a high actuation force of up to 220 N and a maximum valve stroke of 8 mm. It features 2 universal binary inputs that support connections for window contacts, presence detectors, and push buttons. The second input also supports external temperature sensors. Additionally, the actuator has automatic valve adjustment and is compatible with a wide range of valve adapters, making it versatile. Two adapters for the most common valves (M30x1.5 and Danfoss RA-VA 10 & VA 100) are included. The bus coupler is integrated. The device can be used in the heating circuit distributor. The current valve position can be displayed via 5 LEDs.