electronic key touch memory TM card ibutton ds1990 ibutton dallas tm1990a-f5 ibutton
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electronic key touch memory TM card ibutton ds1990 ibutton dallas tm1990a-f5 ibutton

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Product Description
Product Description
Specification
item
value
Special Features
Waterproof / Weatherproof
Communication Interface
RFID
Customized support
Customized logo
Place of Origin
China
Guangdong
Brand Name
Toptag
Frequency
iButton RW2000
Protocol
iButton RW2000
Material
Stainless Steel,ABS
Size
16.25*5.89MM or customized
Color
Red, green, blue, yellow, black, etc
Chip
RW1990A, RW1990B, DS1990A
Chip type
Readable and writable
Memory
64 bits
Design
I button
ID number
Engraved
Packing
100pcs/box
MOQ
100pcs
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