The i Button ® is a computer chip enclosed in a 16mm stainless steel can. Because of this unique and durable stainless steel can, up-to-date information can travel anywhere with a person or object. The steel button can be mounted virtually anywhere because it is rugged enough to withstand harsh environments, indoors or outdoors. It is durable enough to be attached to a key fob, ring, watch, or other personal item and used daily for applications such as access control to buildings and computers. 

iButtons can incorporate Thermic and Thermohygrometric sensors. The Thermochron® family of iButtons are globally-addressable dedicated trackers that can go wherever thermally vulnerable products go, monitoring time and temperature and storing the data. The data can then be easily uploaded and analysed to detect possible thermal damage.

Id Tag

iButtons can be used to identify an object or a person, they can store vast amount of additional data (from 1kB to 65 kB). Memory iButtons come in different types to allow you to pick the right device for your specific application.
All memory iButtons have these characteristics:

• Unique and unalterable factory-lasered address
• Low-cost, low-power 1-Wire® interface
• Ability to operate as a mobile database, in either stand-alone or networked application designs

Thermosens

The Thermosens family of iButtons are globally addressable, dedicated trackers that can go wherever thermally vulnerable products go, monitoring time and temperature and storing the data. The data can then be easily uploaded and analyzed to detect possible thermal damage.

The iButton's embedded computer chip integrates a 1-Wire transmitter/receiver, a globally unique address, a thermometer, a clock/calendar, a thermal history log, and 512 bytes of additional memory to store user data (such as a shipping manifest). The recyclable iButton logs data for more than 10 years.

Hygrosens

Our Hygrosens family of iButtons adds an embedded humidity sensor to the temperature-logging capability of the high-capacity Thermosens family to create a data logger that records both temperature and humidity. With these two pieces of data, relative humidity can be logged as a function of time. The tiny opening in the lid of the Hygrochron iButton employs a special filter that allows water vapor to pass through and reaches the internal humidity sensor, but repels liquid-phase water.
 
For applications where both temperature and humidity are important (foods, chemicals, powders, HVAC systems), the Hygrochrons deliver unprecedented performance in an unbelievably compact size.

Blue Dot probe

Known as "Blue Dots," these popular iButton readers contain two electrical contact areas for iButtons. Either simply touch the iButtons with the reader for momentary contact, or with an extra push, snap the iButton into place where it will be held in constant contact. When plugged into a 1-Wire port adapter (USB, serial, or parallel), Blue Dots provide an electrical interface for iButton communications through a PC or other computing environment.

Mobile Reader

A compact flash adaptor to read ID Tags and Thermosens iButtons. It is used with a simple PDA.