US Patent 11062256 Smart physical closure in supply chain

A sensor tag for attachment to at least a portion of a tracked container is disclosed. The sensor tag comprises a wireless transceiver, a logistics sensor, a power source, and a breakable link. The wireless transceiver reports an electronic identifier for the sensor tag. The power source provides power to the sensor tag. The breakable link removably attaches to the container. Removal of the sensor tag from the tracked container is determined with data from the logistics sensor. The removal of the sensor tag is reported by the wireless transceiver away from the sensor tag.