BUYER QUESTION
UL Listed
A Listed mark applies to the certified product and carries identification connected with the listed company or file. Buyers should verify the exact product in UL’s certification records.
UL MARK GUIDE
UL Listed vs UL Recognized Components
A recognized component mark should not be presented as if the finished alarm product were UL Listed.
BUYER QUESTION
UL Recognized
UL explains that component recognition is for components or subassemblies intended to be built into a larger certified end product.
BUYER QUESTION
Common sourcing mistake
Using a recognized power supply, sensor or radio component does not automatically make the complete alarm device UL Listed.
BUYER QUESTION
Verification step
Request the mark, file number, listee or recognized company, model designation and applicable conditions, then confirm them in the official database.
AUTHORITATIVE SOURCES
References used for this guide
Reviewed 2026-09-21. Requirements may change; verify the current rules for the exact product and market.
NEXT STEP
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