Which technology is primarily used by modern retail 'smart shelves' to detect when products are removed or misplaced?

Smart shelf technology is transforming inventory management and customer experience in modern retail. These IoT-enabled shelves can track inventory in real-time, display dynamic pricing, provide product information, and even analyze shopper behavior. As retailers seek competitive advantages through technology adoption, understanding these innovations becomes increasingly valuable for business professionals and economics students alike.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

RFID (Radio-Frequency Identification) sensors
Bluetooth Low Energy (BLE) beacons
Infrared motion detectors
Ultrasonic proximity sensors