Product name : Magnetic iButton DS1990
Material : Stainless Steel button+plastic Holder
Size : 16.25*5.89 for the ibutton
Read only Chip : DS1990/ TM1990
Writable chip : RW1990
Protocal : 1-Wire
Color : blue, red, black, yello, purple ,orange, white, or customized
Type : Electronic Key Fob
Application : Access Control System
MOQ : 100 PCS
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