lm-sensors review
A free, open-source Linux foundation for local hardware readings, limits, logging, and sensor libraries.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
lm-sensors is an open-source Linux package for user-space hardware monitoring. It is designed for Linux systems with supported monitoring hardware, developers building sensor-aware applications, and teams maintaining local sensor infrastructure. The package includes the sensors command for displaying current readings and setting limits, sensors-detect for detecting installed hardware-monitoring chips, libsensors for application integration, and sensord for watching values and logging problems.
Its breadth is a key strength. Depending on the supported drivers, lm-sensors can work with temperature, voltage, fan, power, current, humidity, frequency, PWM, and intrusion data. It connects with Linux kernel hardware-monitoring drivers and commonly accesses sensors through I2C or SMBus interfaces. Custom sensor labels and conversion rules can be defined through configuration files, while sensord supports RRD data storage. These capabilities make the package a useful foundation for scripts, applications, and local monitoring workflows rather than a finished visual dashboard.
The product is free and open source, with Linux as its supported platform. Setup and results depend on the hardware-monitoring chips and drivers available on the system, so it fits users comfortable with Linux commands, configuration files, and application libraries. It does not include a graphical monitor or a standalone remote monitoring console, and its published scope centers on local readings, limits, detection, logging, and storage. Choose lm-sensors when you need an extensible Linux sensor layer or developer library. Choose an alternative when you need a managed fleet interface, remote monitoring workflow, or graphical monitoring experience.
lm-sensors pros and cons
- Where it wins
- Free, open-source tools for local hardware sensor readings
- Supports many sensor types through Linux monitoring drivers
- Includes libsensors, sensord, configuration, and RRD support
- Where it doesn't
- Linux-only platform support
- No graphical monitor included
- No standalone remote monitoring console or fleet interface
lm-sensors fact sheet, pricing and score →
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