RFID Tag Read Range
True physical read range is
determined by the individual RFID reader and antenna power, the actual
Integrated Circuit used in the RFID tag, the material and thickness of
material the tag is coated or covered with, the type of antenna the tag
uses, the material the tag is attached to and more!
While a specification may
show a theoretical RFID tag read range of 5 meters (ideal conditions)
it may be as little as 1 meter if the tag is attached to an object that
is sitting on a metal surface surrounded by water and electromagnetic
waves (not ideal conditions)!
Generally speaking RFID tag read ranges are as follows:
- 125 kHz. and 134.3 kHz. Low Frequency (LF) Passive RFID Tags -read range of 30 cm (1 foot) or less - usually 10 cm (4 inches) unless you are using a very large tag which can have a read range of up to 2 meters when attached to metal. SkyRFID can provide several different LF 134.2 tags which produce read distances of 1 - 2 meters in industrial environments. We also have special readers that allow for a 1 - 2 meter read distance using standard size tags. There are no limits with SkyRFID!
- 13.56 MHz. High Frequency (HF) Passive RFID Tags - maximum read range of 1.5 meters (4 foot 11 inches) - usually under 1 meter (3 feet) and you can use a single or multi port reader plus custom antennas to extend the read range to longer distances or a wider RFID read zone.
- 860 ~ 960 MHz. Ultra High Frequency (UHF) Passive RFID Tags - minimum read range of over 1 meter or 3 feet. Gen2 tags can have a read range of up to 12 meters or 37 feet, however new generation of IC's plus antenna designs are now pushing this distance to over 15 meters! Gen 2 tags can be either 860 MHz. or 902 MHz. frequencies. Gen2 EPCglobal are multifrequency 860 ~ 960 MHz. Gen 2 Semi-active battery assisted tags are semi-passive (semi-active) tags have a read range of up to 50 meters or about 162 feet. Gen 2 Semi-active tags
are just emerging on the market. We have both readers and tags
available for those companies that need to be on the leading edge or
simply need the range of the Gen 2 Semi-active technology. The current Gen2 read distances have been calculated using the second generation of silicon chips available since 2006.
- 860 ~ 960 MHz. 3rd Generation IC/Silicon - The new generation 3 (Monza3 & Higgs3) silicon (Integrated Circuit) is now available in numerous inlay designs. This new silicon (IC) provides up to 40% more sensitivity while reducing RF interference. This means that a tag using this new generation of silicon can have a read range of over 16 meters or 50 feet under FCC regulations of 4 watts EIRP. For your local power regulations see RFID Frequencies and Transmission Power. SkyRFID is now offering several H3 and Monza3 tags and has tested these tags at read distances of over 16 meters or 53 feet using 30 dBi power and a single antenna!
- 2.45 GHz. Super High Frequency Active RFID Tags - up to 100 meter read range (325 feet) There are several different modulations for 2.45 GHz. and you can also have real time location information from these active tags.
We also carry a complete 433
MHz. line of tags and readers should you want to implement a 433 MHz.
tag solution. If you need 433 MHz. hardware now, or you simply want more informaiton about tags, please fill in the form below and we would be pleased to assist you.
To read about RFID Tag Inlays, RFID Tag Design or RFID Tag Integrated Circuits just click on the link to go to the page or simply select
your choice from the menu on the left of the screen.
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