Extensions are optional parts of the program for extending the sensor array. So far, there are five packages of extensions :
Sensor Extensions for Email Systems, Sensor Extensions for WMI, Sensor Extensions for SNMP, Hardware Sensors Extension and Temperature/Home Automation Sensor both of them are added when the software is set up on your system.
The 'Browse for Sensor library' dialog is used to add additional functionality, it is available in the Service Options tab of the Application Settings.

The dialog displays the contents of the library and lists actions and sensors of the extension module.
Note: The service must be stopped before another library can be connected.

