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lm-sensors vs Plasma System Monitor: catalog facts
lm-sensors	Plasma System Monitor
Free Free and open source.	Free Free and open source, developed by the KDE community.
Linux, Command line	Linux
Reads temperatures, voltages and fan speeds from kernel drivers Includes libsensors for use by other tools	Shows sensors, processes and resource usage in one window Customizable monitoring pages
Linux only Command-line output with no graphical interface	Linux only Most at home on a KDE Plasma desktop
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0, LGPL-2.1	License: GPL-2.0-only OR GPL-3.0-only
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.