smaller size ibutton

The Touch Memory Buttons stainless steel container protects the memory chip and provides an electrical path for communication with the touch guard tour reader. The top of button is connected to the enclosed memory chip circuit, and the bottom and sides provide a signal ground. When you touch a button with iButton reader, an electrical connection is established data is transferred instaneously. You can attach buttons to virtually anything by using permanent adhesive pads, mounting brackets, or key ring tabs.

In the middle of it is iButton, in which is electronic memory chips contained in small water-resistant,water-resistant stainless steel canister. All Touch Memory Buttons (TM card, iButton) contain a unique ID number that is unalterable and identifies each button.

Compared to other iButtons, this type iButton is very small, only 1.4cm x 3.2cm! This ID keys is made of stainless steel, which is also very small, easy installation, and super durable!