The KNX room temperature controller UP/PI with button interface 616725 from Merten is a versatile device that functions both as a room temperature controller and as a binary input. It enables precise control of heating and cooling systems by considering the current room temperature and the desired setpoint. Temperature measurement can be done either via the integrated sensor or an external temperature probe connected to the button interface. This interface supports the connection of up to four conventional buttons or potential-free contacts, allowing for flexible operation. The controller offers various operating modes, including comfort, night setback, and frost protection, and can be configured for both heating and cooling applications. With its robust design and IP20 protection rating, it is suitable for indoor use and can be easily installed flush-mounted.

• Supports various operating modes such as heating, cooling, and night setback
• Flexible temperature measurement through internal or external temperature probe
• Allows connection of up to four buttons or potential-free contacts
• Offers a parameterizable setpoint adjustment and presence button function
• Integrated bus coupler for easy KNX integration.