Sets the delay time (timeout) before the same barcode can be scanned again. When off, the same barcode will be scanned only once and will not be scanned again until another barcode is scanned.
First, open the app’s settings screen. In the tab at the top of the app, select 
“Settings” to display the settings screen.
Next, click Timeout in the Symbol section of the configuration screen to toggle the setting on and off. When on, specify the timeout value in seconds (1-99).
Press the OK button to save the settings.