UL 539
Original price was: $190.49.$95.00Current price is: $95.00.
Single and Multiple Station Heat Detectors
Underwriters Laboratories , 06/23/2022
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UL 539
Original price was: $197.87.$98.00Current price is: $98.00.
Single and Multiple Station Heat Detectors
Underwriters Laboratories , 04/28/2017
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UL 539
Original price was: $105.54.$52.00Current price is: $52.00.
Single and Multiple Station Heat Detectors
Underwriters Laboratories , 01/30/2009
Single and Multiple Station Heat Alarms
UL 539
1 Scope
1.1 These requirements cover heat-actuated, single and multiple station heat alarms intended for indoor installation in accordance with the National Fire Alarm Code, NFPA 72, Chapter 11.
1.2 These requirements do not cover electrically operated single or multiple station smoke or heat alarms.
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UL 539
Original price was: $215.15.$107.00Current price is: $107.00.
Single and Multiple Station Heat Detectors
Underwriters Laboratories , 01/01/2000
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