Scene Detect - A decode session is triggered when a change in scene (for example, motion) is detected by the imaging sensor. Illumination is turned on and decoding is enabled. Scene Detect does not require illumination to detect a change in scene (for example, Motion). Susceptible to inadvertent wakeup from motion beyond decode zone (for example, people moving past scanner).
Object Detect - A decode session is triggered when a barcode is detected by the imaging sensor. Illumination is increased and decoding is enabled. Object detect requires some illumination to detect the object (for example, Barcode). Less susceptible than Scene Detect to inadvertent wakeup from motion beyond decode zone (for example, people moving past scanner)
Auto (Default) - The recommended motion detect mode is selected automatically according to model type as follows:
SP72-V (Vertical): Object Detect mode
SP72-H (Horizontal): Scene Detect mode