RFID Labels & Tags: What is the Distance/Range of RFID Tags?
RFID reading distance depends on several factors including:
Size of the tag’s antenna
Tags orientation in the reader field
Strength of the reader field
Environmental factors like metal, water or other material around the tag
LF, HF and UHF near-field tags typically have a reading distance of ~1 ft (30 cm).
UHF far-field tags typically have a reading distance of several m/ft but are strongly dependent on the environment.
NFC Tags (HF) are designed for near-field communication with a smartphone or similar device and typically have a reading distance of ~1 in (2 cm).