the 125khz rfid tag – key fob are considered passive tags. Each of these have a unique id, so multiple tags can be used in a single project and may be purchased in any quantity. Features – works with most common rfid card reader (serial and usb). Em4100 family passive tags. Activating frequency: 125 khz. Readable from 2 to 5 inches of rfid reader. Rohs compliant. Keychain tag for attachment.
The 125khz rfid tag – key fob are considered passive tags; Each of these have a unique id, so multiple tags can be used in a single project and may be purchased in any quantity
Works with most common rfid card reader (serial and usb)
Em4100 family passive tags
Activating frequency: 125 khz
Readable from 2 to 5 inches of rfid reader