Tesco scan as you shop rolls out
Tesco has been rolling out its scan-as-you-shop technology to another 100 stores this year. The handheld scanners allow customers to track spending as they go and then pay at the self checkout without having to unload the items. Tesco first trialled the concept to customers in 2010 and rolled out to a further 60 stores in 2012 with another 140 added in 2013.

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