# Capturing Light Sensor Data

To measure light with the DAQ-M you need to use the [SCANNER application](/daq/daq-m/scanner-application.md) to save a single measurement or start an interval measurement. 

## Choose the Option Depending on your Measurement Needs:

### [Single Measurement = For Object Reflectance Signatures](#for-object-reflectnace-signatures)

### [Multiple Measurements = For Calibrating Survey3 Images](#for-calibrating-survey3-images)


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