Notifier FCO-951-IV


Advanced Multi-Criteria Fire/CO Detector, FlashScan, Ivory, UL listed

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Brand: Notifier Part #: 47281 Categories: , , Manufacturer Part #: FCO-951-IV Tags: ,


The IntelliQuad® PLUS FCO-951/-IV and FCO-951A/-IV advanced multi-criteria fire/CO detector is a plug-in, addressable device that provides both fire and carbon monoxide (CO) detection. The detector combines four separate sensing elements in one unit to sense multiple components of a fire: smoke, CO, light/flame, and heat. This approach enables enhanced sensitivity to real fire with heightened immunity to nuisance particulates. For CO, the detector’s electrochemical sensing cell creates a separate signal for life safety CO detection.

Multiple sensors and communication can greatly reduce nuisance alarms compared to single sensing methods. Sophisticated algorithms maximize the advantages of the sensor types creating our best detection strategy offering heightened immunity to nuisance particulate and enhanced sensitivity to real fire.

  • Photoelectric sensors detect airborne particles associated with smoke.
  • Thermal sensors detect heat and rate-of-rise (135°F fixed temperature threshold).
  • Carbon Monoxide sensors detect this by-product of fire for accurate fire detection.
  • Infrared sensors discern light patterns in the environment as an additional data point for alarm determination.

This ability to reject certain nuisance alarm triggers, such as theater smoke, supports the use of the IntelliQuad PLUS Series detector in applications where moderate to heavy nuisance conditions exist that might cause single sensing detectors to false alarm.

The IntelliQuad PLUS Series detector meets both UL 268 7th edition and UL 521 listing requirements for fire detection as well as the UL 2075 standard for system-connected life safety carbon monoxide detection. Canadian models meet listing requirements of CAN/ULC S529, CAN/ULC S530 and CSA 6.19-01.

Released through the incomplete burning of various fuels, CO is a colorless, odorless and deadly gas that is virtually impossible to detect with the human senses. Because the potential exists for dangerous levels of CO to accumulate in almost any building, legislation mandating the use of CO detection in commercial spaces continues to grow.

B200S series intelligent sounder bases (B200SCOA series in Canada) are recommended for use with FCO-951 Series IntelliQuad PLUS. These bases can generate either a Temp 3 pattern for fire or a Temp 4 pattern for CO alarm indication. The B200S/B200SCOA series bases recognize the System Sensor synchronization protocol, for use as a component of the general evacuation signal — along with other System Sensor horns, horn strobes, and chimes — when connected to a power supply or Fire Alarm Control Panel (FACP) output capable of generating the System Sensor synchronization pulses.


Weight 1.00 lbs






Compatibility Guide

N16e, N16x, NFS-320, NFS2-3030, NFS2-640


  • Unique ability to detect all four major elements of a fire
  • Separate CO detection signal
  • Highest nuisance alarm immunity
  • Automatic drift compensation for smoke and CO sensors
  • Uses only one address on the SLC
  • RealTest CO testing capability
  • UL 268 7th edition, UL 521, and UL 2075 listed; CAN/ULC S529, CAN/ULC S530 and CSA 6. 19-01 listed
  • Separate audible signal for fire or CO alarm when used with a B200S series base (B200SCOA series in Canada)
  • 10-year CO cell with end-of-life warning
  • New modern profile
  • Expanded color options


FCO-951 Series: Advanced Multi-Criteria Fire/CO Detector
Notifier – Data Sheet


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