Siemens OP921 Addressable Photoelectric Smoke Detector
The Siemens OP921 is a state-of-the-art, addressable photoelectric smoke detector engineered for use with Siemens Cerberus PRO and Desigo Fire control panels. Using advanced optical sensing technology, the OP921 provides fast, reliable detection of smoldering fires while minimizing false alarms.
Built for modern building safety systems, this detector features ASAtechnology™ (Advanced Signal Analysis) — Siemens’ intelligent algorithm that adapts to environmental conditions such as dust, humidity, and airflow. Its sleek, low-profile design fits seamlessly into commercial and institutional settings, including offices, schools, and healthcare facilities.
With simple twist-lock installation on the compatible DB-11 detector base, the OP921 ensures dependable performance, straightforward maintenance, and long service life.
Key Features
- Intelligent, addressable photoelectric detection for early fire warning
- Advanced ASAtechnologyâ„¢ reduces false alarms
- Compatible with Cerberus PRO / Desigo Fire systems
- Low-profile design with LED status indicators
- Easy installation on the DB-11 base
- UL 268 7th Edition compliant