IntelliQuadNotifier by Honeywell’s IntelliQuad PLUS detector offers carbon monoxide (CO) detection together with smoke detection and nuisance alarm rejection as part of an Onyx Series fire alarm system. One unit combines four sensing elements for smoke, CO, light/flame and heat to verify a fire or CO emergency. Separate signals for CO and smoke allow for ONYX systems to respond appropriately based on the event type. Combined with the addressable B200S sounder base, the IntelliQuad PLUS serves as an all-in-one detection and notification unit, reducing materials, installation labor and maintenance costs. The affordability of the unit makes it a solution for commercial sleeping spaces, including hotels, college dormitories, healthcare facilities and military housing as well as apartments or condominiums.

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