iButton® Specialist and Manufacturer of Dallas Keys

iButton + fob

YSL90ALABxxx - Labeled DS1990 iButton® mounted in a Plastic FOB aliased to Unique ID in an Excel Spread Sheet

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Numbered label added to standard Dallas key YSL90Axxx (DS1990A + Plastic FOB) for the purpose of aliasing the 16 Digit iButton® number on the iButton® to a user name in an excel spread sheet. The label number on the Dallas Key and the 16 Digit ID number on iButton® are provide in an Excel Spread Sheet.


Simplifies the routine of managing the aliasing saving time and easing the process of reading the 16 digit number particularly where there are a number of Keys involved.

Standard process as shown in the photo is to add a numeric Label to the FOB and Alias this to the Unique ID and User Name.

We can also offer a bespoke/custom Label of a subset of the Unique ID (eg 7 Digits) as a Special. This requires custom printing on a lead time of 3 to 4 weeks- please enquire if further detail is required.

Please note we can only delivery from stock/on a short lead time if the label number is in a sequence under our control. The principle is to alias the 16 Digit Unique ID to a smaller/simpler label number for ease of allocation management. Specified numbers at the point of ordering is considered a bespoke/custom and unlikely to be stock it and may be subject to a higher price depending on quantity and complexity.