400 Series Two-Wire Self-Diagnostic Photoelectric Smoke Detectors
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SpecsThe 400 Series self-diagnostic, two-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:
- 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
