SALT LAKE CITY -- Associated Food Stores here has become the first in the grocery industry to install a wireless yard tracking system. The system not only locates assets, such as trailers and tractors, but also can monitor the temperatures of refrigerated units. The system, from WhereNet, Santa Clara, Calif., uses special tags and a radio-frequency system to communicate location and other information about trailers, tractors and dollies. WhereNet communicates from the yard of the ...

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