The Siemens FDO421 photoelectric smoke detector represents advanced life safety technology engineered for precise smoke detection in commercial and industrial environments. This high-performance detector utilizes state-of-the-art optical sensing technology to rapidly identify developing fire conditions while minimizing nuisance alarm potential. Designed for integration with modern addressable fire alarm control panels, the FDO421 provides reliable, intelligent smoke detection across diverse facility types including office complexes, healthcare facilities, educational institutions, and manufacturing environments.
Engineered with Siemens’ commitment to precision engineering, the FDO421 employs a sophisticated photoelectric sensing chamber that analyzes light scatter patterns to differentiate between actual fire conditions and ambient environmental variations. Its advanced microprocessor continuously analyzes incoming sensor data, delivering exceptional sensitivity and discrimination capabilities that meet the most stringent commercial fire detection requirements.
Key Features
- Compatible with most addressable fire alarm panel architectures, including Siemens FireFinder XLS and similar systems
- Intelligent microprocessor-based detection algorithm minimizes false alarm potential
- Wide voltage compatibility (15-32 VDC) for flexible system integration
- Low current draw of approximately 65µA in standby mode, supporting energy-efficient design
- Built-in LED indicator for visual status monitoring and commissioning verification
- Fully compliant with UL 268 and NFPA 72 fire detection standards
Technical Specifications
- Operating Voltage Range: 15-32 VDC
- Standby Current: 65µA
- Alarm Current: 100mA maximum
- Operating Temperature: 32°F to 120°F (0°C to 49°C)
- Humidity Range: 10% to 93% non-condensing
- Mounting Base: Standard 4-inch universal mounting configuration
The FDO421 is optimally deployed in environments requiring sophisticated smoke detection, including commercial office spaces, data centers, healthcare facilities, educational institutions, and industrial control rooms. Its advanced sensing technology makes it particularly effective in areas with potential for slow, smoldering fire development such as electrical equipment rooms, mechanical spaces, and communication infrastructure zones.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 4.25 × 4.25 × 1.75 in |
| Condition | New |
| Manufacturers | Siemens |
| Part Type | Photoelectric Smoke Detector |
