iButton tags are being used everywhere because they are convenient and unobtrusive. Tags are globally unique.

iButton tags are being used everywhere because of their compactness and versatility. They can easily be attached to key-rings. Two types are available: one that emits a low radio frequency signal, and another that contains an internally encoded circuit.

The radio frequency type can be read by a transceiver within close proximity. The internal circuit type must be physically inserted into a transceiver to be read.

• Tags are convenient and unobtrusive - small enough to carry on your person.
• Self-powered tags.
• 1m transceiver read range (for radio frequency signal type).
• Uniquely encoded with a 64-bit code, providing 281,000,000,000,000 combinations ensuring security. That's enough combinations for 50,000 unique iButtons per person on earth.

A software package supplied by Accuweigh can match an iButton tag's unique code to staff names, vehicle registrations, area codes, and more, thus allowing traceability and statistical analysis.