These TAGs do not contain batteries as the power is supplied by the reader. They use the power generated from the magnetic field between the reader’s internal antenna and the TAG when they are in close proximity to each other (a few centimetres to a maximum of a few metres).
- limited to being read from only a few metres away
- slow data transfer
- operating temperature:
-25 °C to +85 °C
(-13 °F to +185 °F)
- functions without a battery; has a long lifespan of twenty years or more
- available in small sizes (some as small as a grain of rice)
- offers various applications for consumer goods and other products
The NTAG TAGs are writable, have enough space to save information on them, and can be programmed as read-only to protect the TAGs from unauthorised use and tampering of information.
An active TAG is an RFID TAG equipped with a battery that is used as a partial or complete source of power for the TAG’s circuitry and antenna. Some active TAGs contain replaceable batteries for years of use; others are sealed units. (Note: it is also possible to connect the TAG to an external power source)
- significantly bigger than passive TAGs
- when the battery life comes to an end it must be replaced
- has the longest communication range
- higher data bandwidth
- functions independently of a reader