Which IoT innovation has most significantly reduced waste in pharmaceutical retail by improving inventory management of temperature-sensitive medications?

The Internet of Things (IoT) has revolutionized scientific retail environments, from laboratory supply stores to pharmaceutical retail chains. Smart devices now monitor everything from inventory temperature to customer engagement with scientific products. This poll tests your knowledge of cutting-edge IoT applications specifically in science-focused retail environments. Do you know how modern scientific retailers are leveraging connected technology?

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RFID-enabled smart shelving with real-time temperature monitoring and predictive expiration alerts
Facial recognition systems that track customer browsing patterns in the medication aisles
Voice-activated inventory assistants that verbally guide pharmacists to product locations
Blockchain-based customer loyalty programs that reward prescription refills with cryptocurrency