The TR-74U1i Illuminance UV Recorder is a datalogger that simultaneously measures and records illuminance, UV light, temperature, and humidity. The logger can store up to 8000 readings and can also display cumulative illuminance and UV light in the LCD display. Use the T& D Graph Application to download the recorded data to your computer. From there, the data can be exported to a csv file for managing in Excel.
Download the T&D Graph application: here
Download the user manual: here
View the logger specifications: here