The iButton TM/DS1990A is an electronic key with a unique ID code for the control of security and identification systems. Its special design is resistant to dirt and heat, due to the fact that it is made of stainless steel alloy and is factory sealed. Each iButton key has a unique 64-bit factory-installed code.
The key itself works by attaching it to a magnetic reader, then the chip in the key transmits data over the 1-Wire protocol and is thus recognized, and as the signal uses only 1 path, this method is very reliable.
Technical specs. and features:
â—Ź Electronic key iButton with integrated chip
â—Ź Unique, unchangeable 64-bit ID code
â—Ź 1-Wire protocol ensure compatibility with other devices.
â—Ź Made of stainless steel
â—Ź Durable body, with engraved registration number, withstands harsh environments, is resistant to dirt and moisture
â—Ź Data transfer speed: 16,3kb/s
â—Ź Data storage for more than 10 years
â—Ź Dimensions without handle: 17,35 x 6 mm
External links and applications:
● User’s manual
â—Ź Security systems
â—Ź Sauna door locks
â—Ź Electronic door locks
â—Ź Identification of items
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TM/DS1990A iButton Touch Memory Card

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