Sensors

Since each network device (or "server") usually has several parameters or services that should be monitored you can set up various sensors to monitor each and every aspect of a server (e.g. CPU load, webserver responsiveness, SMTP responsiveness, PING time, etc.) So a "server" has several "sensors" by which you will monitor all aspects of the server.

For more information about sensor types see Sensor Types in Detail. For more information about editing sensors see the Managing Sensors section of the manual.