This Danfoss RET2001OT V2 is a wired digital room thermostat designed for controlling heating systems that use the OpenTherm communication protocol. It allows for precise temperature regulation and can communicate with compatible boilers and heating systems for optimized performance.

Key features typically include:

• OpenTherm Compatibility: Enables two-way communication with compatible heating systems for more efficient operation.
• User-Friendly Interface: Digital display and intuitive controls for easy heating adjustments.
• Energy Efficiency: Helps optimize heating to reduce energy consumption.
• Frost Protection: Maintains a minimum temperature to prevent pipes from freezing.

Overall, it's a versatile and efficient option for controlling home heating, enhancing comfort while potentially lowering energy bills.