| Detailed Features
Discover the ServerSentinel Sensors
What is a sensor and what is it for?
Sensors are monitoring elements that ServerSentinel uses to detect
changes, events or certain signals sent by your IT system.
ServerSentinel sensors measure available hard disk space, temperature
in your server room, the CPU load etc. and respond accordingly.
Full variety of different sensors to
ServerSentinel offers a wide, extensible array of configurable sensors.
These sensors are grouped into the following categories.
Mail Flow Sensor
- IMAP, SMTP and POP3 Sensor
- The IMAP Sensor checks the proper function of IMAP services, the
SMTP Sensor checks if an SMTP service is available and works properly
and the POP3 Sensor frequently checks a POP3 account.
- The Mail Flow Sensor checks email submission, transport, and
delivery by sending a test email.
Directory Sensor (Windows/Linux)
Disk Space Sensor (Windows/Linux)
- With the help of the Directory Sensor you can monitor local as
well as distant folders and their properties of a Windows or Linux
File Audit Sensor
- The Diskspace Sensor monitors the storage of drives on a Windows
or Linux system.
File Sensor (Windows/Linux)
- The File Audit Sensor is able to monitor the security event log
of local and remote computers to notify you when files or directories
File System Sensor
- The File Sensor can monitor a single file on a Windows or Linux
- The File System Sensor monitors changes to files or sub
directories in a directory.
- The S.M.A.R.T. Sensor monitors the status of local and remote
- The DNS Sensor checks entries on a DNS server.
- The FTP Sensor monitors files and directories on a FTP server.
- The HTTP Sensor can monitor a specified website. It can be used
to check the availability or the performance of the website.
SNMP Request Sensor
- The Ping-Sensor allows you to perform frequent echo pings.
SNMP Trap Sensor
- The SNMP Request Sensor can query random network devices,
supported by SNMP e.g. computers, printers, switches or systems for
uninterruptible power supply.
- The SNMP Trap Sensor can receive traps, sent from another
network device over port 162. Traps are messages sent from many network
devices to announce certain warnings or problems.
- The Syslog Sensor can receive syslog messages, sent from the same
or other network devices. Syslog messages are sent to announce certain
warnings or problems or to log status reports, events or diagnostics.
Operating System Sensors
- The TCP Sensor checks the connection to a host on a specific port.
Performance Counter Sensor
Process Sensor (Windows/Linux)
- The Performance Counter Sensor monitors performance qualities on
the local system or a remote host with the Windows Performance Counter.
- The Process Sensor allows you to monitor processes on a remote or
local Windows or Linux system.
System Load Sensor (Windows/Linux)
- The Service Sensor allows to monitor a Windows service.
Windows Event Log Sensor
- With the System Load Sensor the CPU, disk load and also the
available memory of the local or a remote Windows or Linux system can
- The Windows Event Log Sensor is able to monitor event logs of
local and remote computers and to notify you when new events occur.
- The WMI Sensor performs custom WMI queries on the local or remote
- USB Temperature/Humidity Sensor
- The USB Temperature/Humidity Sensor can monitor the temperature
(in °C) and the humidity (in relative humidity, RH) in a room.
- USB Contact Sensor
- The USB Contact Sensor monitors devices with a hardware sensor.
- With the Database Sensor it is possible to connect to a database
to frequently perform queries on a table or to execute a stored
- The PowerShell Sensor allows you to execute a PowerShell script
on a target host.
- With the Script Sensor you can launch a process (EXE/BAT/PS1/VBS)
and gather its output.
- The SpeedFan Sensor can monitor the temperature of CPU cores,
hard disks or fan speeds in conjunction with the free tool SpeedFan.
- The SSH Sensor allows you to execute Bash scripts on an unix
based target host via SSH.
- The XML Sensor reads values from an XML file using XPath (XML
- ServerSentinel is compatible with a variety of hardware sensors.