449CRT Smoke Detector with 135º Heat Sensor: 4 Wire - GE Sensors
The 400 Series self-diagnostic, four-wire smoke detectors continually monitor their own sensitivity and operational status and provide a visual trouble indication if they drift out of sensitivity range or fail internal diagnostics. They meet NFPA 72 field sensitivity testing requirements without the need for external meters.
Features and Benefits
- Intelligent, self-diagnostic
- Field-replaceable optical chamber
- Low-profile design
- Plug-in terminal block
- Advanced false alarm immunity
- Available 6VDC, 12VDC and 24VDC operation
- Options include sounders, auxiliary relays, heat sensors and built-in end-of-line relay
- Meets NFPA 72 without need for external meters or ladders
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