Ive heard the VeriChip is a passive RFID device. What does that mean?
A “passive” RFID device does not have a battery or other internal power source. It derives its power from the signal sent by the reader or scanner that reads it. In contrast, an “active” RFID device has a battery or other power source that enables it to send out its signal continuously, or on command, whether a reader is present or not. Active RFID tags have a longer read range than do passive tags, but they eventually stop transmitting when the battery wears out. Passive tags, in contrast, can theoretically transmit indefinitely.
Related Questions
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- Ive heard that the VeriChip is a passive RFID device. What does this mean?