The GE Security 400 Series Smoke Detector has been discontinued. No direct replacement is available. Please contact us for a suitable substitute.
Advanced false alarm immunity
The 400 Series Smoke Detector self-diagnostic, 4-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.
400 Series Smoke Detector, 449CT Smoke Detector (Self-Diagnostic, Photoelectric, 4-Wire with Heat Sensor)
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