Psensor is a graphical hardware temperature monitoring tool for Linux that allows users to monitor the temperature of various components such as CPU, GPU, and hard drives in real-time. It provides visual representations of temperature data through graphs and notifications when temperatures exceed predefined thresholds. Psensor can also log historical temperature data for analysis and supports sensors from various sources, including lm-sensors and hddtemp. The application is designed to be user-friendly, making it accessible for both novice and experienced users who want to keep track of their system's thermal performance. libxnvctrl is only needed if you have an NVIDIA card. See README.NVIDIA for more information.