This document provides instructions for using a HOBO UA-002-64 Temperature and Light Logger. It describes the logger components and specifications. It then outlines 9 steps to set up the logger, including connecting it to a computer, launching it to begin logging, checking its status, deploying it, reading out the collected data, graphing the results in HOBOware software, and exporting the data to a CSV file for further analysis in Excel. Additional resources are referenced for learning more about using the HOBOware Pro software.