Standard By:Underwriters Laboratories , 10/27/2017
Published:10/27/2017
UL Subject 521
Original price was: $277.00.$138.00Current price is: $138.00.
Standard for Heat Detectors for Fire Protective Signaling Systems (CSDS Proposal, 10/27/2017)
Underwriters Laboratories , 10/27/2017
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