Sales outlet information system

In a point-of-sale information system, comprising a data center (10) and a plurality of outlets (24) each having a sales terminal (26) connected to the data center (10) for receiving, forwarding, processing and / or issuing sales data, each sales terminal (26 ) with a in the point of sale (24) arranged sensor unit (30, 32, 34) for detecting events within the point of sale (24) in signal communication and is designed so that it depends on one of the sensor unit (30, 32, 34) emitted event signal transmitted a message to the data center (10).