The range at which RFID (Radio-Frequency Identification) can be detected depends on the type of RFID technology being used and the frequency it operates on. Generally, there are three main RFID frequency bands: low frequency (LF), high frequency (HF), and ultra-high frequency (UHF). Each has different read ranges:
Low Frequency (LF): Typically operates around 125 kHz and has a short read range, usually up to 10 centimeters (4 inches). LF RFID is often used in access control systems and animal tracking.
High Frequency (HF): Operates around 13.56 MHz and has a moderate read range, generally up to one meter (3 feet). HF RFID is commonly used in applications like contactless payment cards and NFC (Near Field Communication) devices.
Ultra-High Frequency (UHF): Operates around 860-960 MHz and has a longer read range, potentially reaching several meters (yards). UHF RFID is often used in supply chain management, inventory tracking, and logistics.
The specific characteristics of the RFID system, such as the power output of the reader and the size of the
RFID tag's antenna, also influence the read range. Keep in mind that obstacles, interference, and environmental conditions can impact the effective range of RFID systems.
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