Developed and integrated a CPU temperature sensor for AVM FRITZ!Box devices within the ha-core repository, enabling real-time monitoring and early alerting for thermal issues in home networks. The feature retrieves and displays CPU temperature data, supporting dashboards and proactive maintenance to reduce overheating risks. Leveraging Python programming, sensor development, and unit testing, the implementation fit seamlessly into the existing sensor framework to maintain a consistent user experience. The work emphasized code quality and efficient integration, ensuring minimal impact on runtime performance while enhancing device observability and supporting better capacity planning for users managing AVM FRITZ!Box environments.