The present invention discloses a RFID system for monitoring food hygiene, comprising: a first accommodating space; an object-under-monitor with a RFID tag attached thereon, being disposed in the first accommodating space; an environmental sensor, disposed in the first accommodating space; a processor, electrically connected to the environmental sensor; a first RFID accessing device, disposed in the first accommodating space while electrically connected to the processor; a second accommodating space; a displaying device, disposed in the second accommodating space; and a second RFID accessing device, disposed in the second accommodating space while electrically connected to the displaying device.

 
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> Method and means for correcting measuring instruments

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