This feature can be used across all of our devices if using Sensor Cloud, but can also be set in the Software of the USB device. The "Temperature Offset" field can be used to adjust a temperature you know is being influenced incorrectly. Click here is looking for using offsets in Sensor Cloud.
Your USB device is plugged directly into a server near an internal exhaust fan. This causes the device to pick up all the excess hot air from the server, resulting in a reading that is always 6 degrees higher than the actual room temperature. You can apply an offset of -6 to remedy this problem. This would decrease all temperature readings by the device by 6 degrees.