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Ibutton RFID keychain
DS1990A iButton keychains with rugged stainless steel casing, widely used in industrial time clocks.
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Ibutton RFID
The DS1990A F5 module-equipped Ibutton RFID keychain is a sophisticated RFID chip that provides dependable data transmission and storage capabilities. It allows key fobs to securely exchange information and authenticate…
