449CT 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.

• 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