The iButton provides a simple, secure way of identifying a person or asset. It can serve as an electronic serial number that is never duplicated. With onboard memory, up to 32k bytes, iButtons can also give your assets their own personalized database. Each asset will have the ability to store unique information about itself and have that information permanently affixed to the asset. This makes iButtons perfect for various asset management and data collection functions such as equipment maintenance records and inventory management.