RFID sensor tags

Savi Technology has released two sensor tags that reduce spoilage and damage by monitoring the temperature and humidity of commercial shipments of food stuffs and other perishables vulnerable to environmental conditions as they move through the supply chain.

In addition to RFID components that automatically locate goods in the supply chain, the ST-673 and ST-674 contain sensors that monitor temperature and humidity changes of the container's contents or other supply chain assets. When commissioning the tags, users can set acceptable temperature and humidity ranges tailored to the characteristics of the particular goods to be monitored.

The Savi ST-673 and ST-674 are active RFID tags that provide visibility to assets and shipments as they move through the supply chain. In addition, the tags periodically record the environmental status data to an event log in the Savi SensorTag's memory. If the collected data rises or falls outside the acceptable condition range, the Savi SensorTag sends a real-time alarm to a fixed or mobile RF reader, and notification of the temperature or humidity change is escalated via a web application, mobile phone or email, allowing the problem to be addressed immediately before spoilage or damage occurs.

The complete environmental event logs can be uploaded to handheld readers or to fixed readers at stationary sites such as yards and warehouses in the supply chain. This enables users to identify the time and location of unacceptable environmental conditions, or to confirm that acceptable ranges, and therefore shipment quality, are maintained throughout the journey.