The S1255 MarkTag is a read-only 2.45 GHz RFID tag. The S1255 is the standard choice of ID-tag in parking and access control
applications that require hands-free vehicle access. Each ID-tag has a pre-programmed 8-digit unique identity code from factory
that comprises a 32 bit checksum for automatic verification. In combination with a random reflection of the reader signal, this
eliminates substitution errors even with several ID-tags identified simultaniously. The ID-tag is battery powered, keeping the IC and
memory awake, for instantaneous reflection of the reader signal. The lifetime of the S1255 is therefore fully predictable to 6 years,
independent of the number of times it is being identified.