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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
With Fire Marking
Model FDO421 is Underwriters’ Laboratories Listed [UL268A Listed for direct in-air duct usage]
System Sensor 2151 Photoelectric Low-Profile Plug-In Smoke Detector (Replaces 2451TH)
Rated at 220°F fixed temperature activation
5A power supply
Simplex 49SV-APPLW-O Addressable Speaker System Sensor HRL-LF With Fire MarkingSimplex 49SV APPLW O Addressable Speaker and speaker visible appliances are individually addressed and individually controlled with power, supervision, and audio from a compatible Simplex fire alarm control unit (FACU) A combination of an IDNAC Signaling Line Circuit (SLC) and a compatible audio (speaker) circuit are required for these appliances.
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