lm_sensors (Linux monitoring sensors) is a free and open-source application that provides tools and drivers for monitoring temperatures, voltage, and fans. This document explains how to install, configure, and use lm_sensors.
A. Enable Temperature using lm_sensors
1. Download rpm lm_sensors if you using offline
For Rhel6/Centos6 Download rpm lm_sensors-3.1.1-17.el6.x86_64.rpm then copy to server
# wget http://mirror.centos.org/centos/6/os/x86_64/Packages/lm_sensors-3.1.1-17.el6.x86_64.rpm
For Rhel7/Centos7 Download lm_sensors-libs-3.4.0-4.20160601gitf9185e5.el7.x86_64.rpm, lm_sensors-3.4.0-4.20160601gitf9185e5.el7.x86_64.rpm
# wget http://mirror.centos.org/centos/7/os/x86_64/Packages/lm_sensors-libs-3.4.0-4.20160601gitf9185e5.el7.x86_64.rpm
# wget https://www.rpmfind.net/linux/centos/7.4.1708/os/x86_64/Packages/lm_sensors-3.4.0-4.20160601gitf9185e5.el7.x86_64.rpm
