In Inquiry mode, passes are checked and any information about the pass is returned, but no validation happens.

Inquiry mode can be toggled by tapping on the screen below the PassInfo button (and between the Config and Quit buttons).

 

 

The display says, Inquiry Scan, no sounds are played and no records are validated or trickled.

 

 

After entering Inquiry mode and scanning a pass or ticket, the unit reverts back to normal mode.