Which technology is NOT typically integrated into modern smart shelf systems used in scientific retail establishments?

Smart shelves are transforming scientific retail environments by integrating sensors, AI, and real-time analytics to monitor inventory and customer behavior. These technological innovations are particularly valuable in scientific supply stores, pharmacies, and laboratories where precise inventory management is critical. Test your knowledge about this cutting-edge retail technology that's changing how scientific products are merchandised and sold.

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RFID (Radio-Frequency Identification) sensors for automatic inventory tracking
Weight sensors that detect when products are removed or replaced
Quantum encryption for securing customer purchase data
Digital price displays that can be updated remotely in real-time