You can plug in up to 2 temperature sensors on the SensorProbe2 and up to 8 on SensorProbe8, SensorProbe8-X20/X60 and SecurityProbe. The CAT5 Enabled version allows you to place the sensor up to 1000 feet from the SensorProbe using standard CAT5 cable (5 ft cable included). There is also a water resistance version of the sensor available if there is a chance that the sensor end could be submersed in water.
The sensorProbe auto detects the presence of the temperature sensor once plugged into the RJ-45 port. A built in graph option is included on all sensorProbes for graphing temperature variations over a period of time.
Each temperature sensor has its own SNMP OID so that the data can be collected over network and graphed using external application like MRTG.
The temperature sensor can be read using included SNMP utilities to allow graphing and data logging at 0.5°C resolution.