Read range depends on a number of factors, including the frequency of the radio waves uses for tag-reader communication, the size of the tag antenna, the power output of the reader, and whether the tags have a battery.
Microwave:
2.45 – 5.8 GHz, up to 150 meters, battery powered tag. Highway toll collection; vehicle fleet identification.
Low-frequency:
125 – 134.2 kHz, up to 80mm. Pet and ranch animal identification; car keylocks; factory data collection.
High-frequency:
13.56 MHz, up to 1 meter, Library book identification; smart cards; NFC; transit tickets.
Ultra-high frequency (UHF):
860 – 960 MHz, up to 20 meters. Supply chain tracking: item identification; apparel; healthcare.
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