Tech Note
Getting Started

Attached is an image that will help you identify which measurement relates to the internal sensor vs the external sensor on the HOBO U23-004 Temperature Logger.

Also attached is a screen shot from the U24-004 HOBOware Launch screen that identifies sensor 1 as the internal sensor and sensor 2 as the external sensor. You can use the sensor label fields (where it says "Enter label here") to add sensor labels as well, which will be included in the data set as sensor identifiers when you plot the data in HOBOware.