Yes, You can use one of our RJ-45 dry contact sensors in the any of the 8 ports to drive a relay and a temperature sensor to trigger the output to the relay. The dry contact sensor can be configured to output +5 VDC. You have to turn off the auto sense feature and tell the unit (manually) that this is a relay on the port and not a ?security? sensor, which the units web interface will show after it is plugged in. At this point, you would configure the temperature thresholds and create the relay action and link the sensor to the relay. When the unit turns the ?relay? on, you will get 5VDC output to the dry contact. This can also be used to drive a mini solenoid switch or something like that to turn on a larger circuit.