Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji

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Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji Detail:

TM key card ds1990 ibutton 1990a-f5 ibutton rw1990

Product Parameter

Item TM key card ds1990 ibutton 1990a-f5 ibutton rw1990
Material ABS , Stainless Steel
Size ibutton size: 17mm*6mm
Color Red, green, blue, yellow, black, etc
Working Temperature -40 ~ +85 degree
Read-Write Method Contact
Memory 64 bits
ID number Engraved
Chip RW1990A, RW1990B, DS1990A, TM1990-F5
Application Intelligent Community, Postal Service, Railway St, etc.

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What is TM key card ds1990 ibutton ?

 —- An iButton is a computer chip which is enclosed in a 16mm thick durable weather resistant

stainless steel can. Because of their small size and extreme durability, iButtons can travel virtually anywhere.

           

How does an TM key card ds1990 ibutton communicate?

 

The iButton is a slave device and requires a master to initiate communication to it. A master can be a PC or a micro processor. With the master constantly polling the iButtons, communication to iButtons can be started by a simple touch to a 1-Wire interface called a Blue Dot Receptor. Every iButton has a unique 64-bit serial number, which gives it a unique 1-Wire network address.

 

What are TM key card ds1990 ibuttons being used for?

 

iButtons are frequently attached to key fobs, rings, watches, or other personal items for applications such as access control to buildings and computers. Additionally, iButtons are commonly mounted to storage crates, trucks, and other equipment for asset management. Furthermore, iButtons are mounted to refrigeration units, outdoor environments, and even to animals for various data logging tasks

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Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji detail pictures

Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji detail pictures

Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji detail pictures

Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji detail pictures

Custom Elastic Rfid Wristband - TM key card ds1990 ibutton 1990a-f5 ibutton rw1990 – Chuangxinji detail pictures


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