Multi-Criteria Fire/CO Detector



TR-PHOTO-T-W - TRIGA /TR-FIRE-CO-W and TR-FIRE-CO-IV are plug-in addressable devices that provide both fire and carbon monoxide (CO) detection. The detector combines four separate sensing elements 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 all four 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).

·        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 fire/CO detector in applications where moderate to heavy nuisance conditions exist that might cause single sensing detectors to false alarm.


Meets UL 268 7th edition and UL 521 listing requirements for fire detection and UL 2075 standard for system-connected life safety carbon monoxide detection.


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.

TR-B200S series intelligent sounder bases are recommended for use with TR-FIRE-CO-W and TR-FIRE-CO-IV. These bases can generate either a Temp 3 pattern for fire or a Temp 4 pattern for CO alarm indication. The TR-B200S series bases recognize the Triga synchronization protocol for use as a component of the general evacuation signal – along with other Triga Audible/Visible devices – when connected to a power supply or Fire Alarm Control Panel (FACP) output capable of generating the System Sensor synchronization pulses.

·        Detects all four major elements of a fire

·        Separate CO detection signal

·        Separate audible signal for fire or CO alarm when used with a TR-B200S-series base

·        Highest nuisance alarm immunity

·        Automatic drift compensation for smoke and CO sensors

·        RealTest® CO testing capability

·        New modern profile with expanded color options

·        Uses only one address on the SLC loop

·        UL 268 7th edition, UL 521 and UL 2075 listed

·        10-year CO cell with end-of-life warning


Dimensions: Height: 2.7″ (69 mm) installed in TR-B200S series sounder base
Diameter: 6.875″ (175 mm) installed in TR-B200S series sounder base
Weight: 3.4 oz. (95 g)
Operating Humidity Range: 15% to 90% Relative Humidity, Non-condensing
Operating Temperature Range: 32°F to 100°F (0°C to 38°C)
Air Velocity: 0 to 4000 ft./min. (0 to 1219.2 m/min.)


Operating Voltage Range: 15 to 32 VDC
Operating Current @ 24 VDC: 200 uA (one communication every 5 seconds with green LED blink on communication) Maximum Alarm Current: 2 mA @ 24 VDC (one communication every 5 seconds with red LED solid on)
Maximum Current: 4.5 mA @ 24 VDC (one communication every 5 seconds with amber LED solid on)
Isolator Load Rating: 0.0063


Alarm thresholds (in parts per million) are as follows for:

70 ± 5ppm: Detector response time 60 – 240 min.
150 ± 5ppm: Detector response time 10 – 50 min.
400 ± 10ppm: Detector response time 4 – 15 min.


Per UL standard 2075, the IDP-FIRE-CO-W and IDP-FIRE-CO-IV have been tested to the sensitivity limits defined in UL Standard 2034.
UL Standard: UL 268 7th Edition


The listings and approvals below apply to the TR-FIRE-CO-W and TR-FIRE-CO-IV. In some cases, certain modules may not be listed by certain approval agencies, or listing may be in process. Consult the factory for the latest listing status.
UL Listed
FM approved


TR-FIRE-CO-W: Advanced multi-criteria fire/CO detector, bright white color.
TR-FIRE-CO-IV: Advanced multi-criteria fire/CO detector, ivory color


TR-B501-WHITE: 4″ Mounting base, white
TR-B501-IV: 4″ Mounting base, ivory
TR-B501-BL: 4″ Mounting base, black
TR-B300-6: 6″ Flanged mounting base, white TR-B300-6-IV: 6″ Flanged mounting base, ivory TR-B200S-WH: Intelligent addressable sounder base, white
TR-B200S-IV: Intelligent addressable sounder base, ivory TR-B200S-LF-WH: Intelligent addressable sounder base, low-frequency, white
TR-B200S-LF-IV: Intelligent addressable sounder base, low-frequency, ivory
TR-B224BI-WH: Isolator base, white
TR-B224BI-IV: Isolator base, ivory
TR-B224RB-WH: Relay base, white
TR-B224RB-IV: Relay base, ivory


TR-RA100Z: Remote LED annunciator