1 pcs : DS1973-F3+ - iButtons & Accessories 4Kb EEPROM iButton

iButton® Devices Analog Devices iButton® Devices are computer chips enclosed in a 16mm thick stainless steel can. Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go. The steel iButton device can be mounted virtually anywhere because it is rugged enough to withstand harsh environments indoors or outdoors. The Analog Devices Button Devices are small and portable enough to attach to a key fob, ring, watch, or other personal items, and they can be used daily for applications such as access control to buildings and computers, asset management, and various data logging tasks.