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Technology:

Frequency:

Memory:

Read Rate:

Detection Range:

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with RFID Tags specifications:

Type
   Technology       
   Your choices are...         
   Passive       An RFID tag without a battery. When radio waves from the reader reach the chip’s antenna, it creates a magnetic field. The tag draws power from the field and is able to send back information stored on the chip. 
   Semi-passive       Similar to active tags, but the battery is used to run the microchip's circuitry but not to communicate with the reader. Some semi-passive tags sleep until they are woken up by a signal from the reader, which conserves battery life. 
   Active       An RFID tag that comes with a battery that is used to power the microchip’s circuitry and transmit a signal to a reader. Active tags can be read from 100 feet or more away. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Performance
   Frequency:       RFID products use low, high, ultra-high and microwave frequencies. Each frequency has advantages and disadvantages that make them more suitable for some applications than for others. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Memory:       The amount of memory controls the amount of data that can be stored on a tag. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Read Rate:       The maximum rate at which data can be read from a tag expressed in bits or bytes per second. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Detection Range:       The distance from which a reader can communicate with a tag. Active tags have a longer read range than passive tags because they use a battery to transmit signals to the reader. With passive tags, the read range is influenced by frequency, reader output power, antenna design, and method of powering up the tag. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Operating Temperature       The range of temperatures through which the RFID product is designed to operate. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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