Walmart will be putting millions of sensors on its pallets across its supply chain chain, in a move that technology partner Wiliot is calling “the first large-scale deployment of ambient Internet of Things (IoT)” sensors in the retail industry.

The technology is currently deployed in 500 Walmart locations, and the retail giant plans to expand nationwide in 2026.

The ambient IoT sensors are battery-free and operate by harvesting energy from sources such as radio waves, light, motion, and heat, according to CNBC.

The wide rollout will cover 4,600 Walmart Supercenters, Neighborhood Markets, and over 40 distribution centers, generating high-resolution supply chain data that feeds into Walmart’s AI systems. The retail giant has one of the biggest supply chain networks in the U.S.

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