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Product Name
Dallas iButton Reader

Model No.

Catalog     Picture  


TMR901 is a simple to use device, that lets you read the registration number (ID-Code) of   Dallas Semiconductor Touch Memory Button / iButton.

Each iButton.has an unique serial number and it is unalterable serial number. It can be used as a key or identifier for each iButton. That is guaranteed against duplication. Because no two buttons can ever have the same registration number, they can be used for various identification purposes(objects, people, etc...) , also for automated password entry and lots of other applications.

The TMR901 will read the registration number of all Dallas Touch Memories manufactured, regardless of their model number.




1.  PC interface: USB HID keyboard or RS232
2.  Power supply: 5V
3.  Power consumption: 90mA max
4.  Dimension: 45(L) x 40(W) x 28(H) mm
5.  Weight:    75 grams
6.  Operating temperature: -10 to 60 Deg. C
7.  Storage temperature:   -20 to 65 Deg. C
8.  Humidity:  10-90%

Note: The Specification is subject to change without notice.




Available versions
TMR901U-10 : USB HID inteface
TMR901R-10 : RS232 interface




Application Example




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