Radio-frequency identification(RFID) is atechnologythat uses communication viaradio wavesto exchange data between a reader and an electronic tag attached to an object, for the purpose of identification and tracking. Now there is a growing number of applications in th area of security.
The term RFID refers to the technology. The tags should properly be called "RFID tags".
There are three types of RFID tags: passive RFID tags, which have no power source and require an external electromagnetic field to initiate a signal transmission, active RFID tags, which contain abatteryand can transmit signals once an external source ('Interrogator') has been successfully identified, and battery assisted passive (BAP) RFID tags, which require an external source to wake up but have significant higher forward link capability providing greater range.
There are normally three ranges of RFID frequency: Low Frequency (LF), High Frequency (HF) and Ultra-high Frequency (UHF). Different class covers different range of frequency, one most importance of the frequency is that determines the reading distance of tags and this distance directly determine the application of the frequency to certain applications.
Low Frequency is talking about 125 KHz to 135 KHz.
High Frequency is talking about 13.56 MHz.
Ultra High Frequency is talking about 860 MHz to 960 MHz.
There are various international standards governing the use of this emerging technologies, making sure the products and solutions would be eventually compatible to certain extent.
RFID Reader
- RFID UHF 860-960 MHz ISO 18000 6B/C Handheld Portable Reader Writer Bluetooth Android SDK Supported SKU: LF960BT$242.31Out of stock
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- Ultra Thin RFID UHF Desktop 40cm Reader Writer USB EPC 96-bit 18000 860-960 MHz #deskuhf SKU: OS811$102.31Out of stock
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- RFID 134 2 KHz 1178411785 HDX Reader Portable Bluetooth for Farm SKU: LF1342HRO$122.31Out of stock
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- Portable HID card Copier 125KHZ RFID Reader & Writer duplicator Duplicate Copy SKU: BLUECOPIEERHID$15.00
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- RFID 13.56 MHz NFC 15693 Portable Bluetooth Reader Writer for Android Smartphone SKU: ZFBT15693$102.31Out of stock
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- RFID 13.56 MHz 14443A Reader WRITER Portable Bluetooth ANDROID APPS MOBILE SDK SKU: ZFBT14443$102.31Out of stock
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- Portable Bluetooth UHF RFID reader card reader card issuer uses R500 program Long Range 2M SKU: SBBT2M$368.99Out of stock
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- Portable Bluetooth+USB UHF RFID reader card reader card issuer Desktop R500 program Long Range 2M SKU: MZUHFBTD$433.00Out of stock