An iButton® is a computer chip with a globally unique 64-bit address, factory-programmed at time of manufacture, enclosed in a 16 mm stainless steel case. iButton devices can include read/write memory, real-time clocks, and temperature/humidity data loggers. All this power and capability make iButton devices ideal for a wide range of applications including environmental data logging, access control, eCash transactions, and asset tracking. With onboard memory, iButton devices can also store critical information about an item or location, such as container contents, shipping destination, or owner information.
View and download iButton certifications.