Where do I Find The Serial Number on an EN2/EN4?


EN2/EN4 (EOL)
Back

The serial number on EN2 and EN4 series APS buttons is laser etched on the back of the unit.

The info in order:

  • Model Name
  • Manufacturing Job Number
  • Serial Number

All of our product either contain the DOM as part of their serial number code or just a Date Code by itself. The first 4 digits determined the DOM in the format YYWW (so 2137 would be year 2021 and week 37/52)

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