Siemens HI921 Addressable Heat Detector
The Siemens HI921 is an intelligent, addressable heat detector designed for use with Siemens Cerberus PRO and Desigo Fire alarm systems. Using advanced thermal sensing technology, the HI921 quickly identifies abnormal temperature changes caused by fire, providing a fast and reliable response even in environments where smoke detection may not be ideal — such as kitchens, garages, or mechanical rooms.
Built with Siemens ASAtechnologyâ„¢, the HI921 continuously analyzes its environment to distinguish between normal heat fluctuations and actual fire conditions. This adaptive approach helps prevent false alarms caused by steam, dust, or ambient temperature changes.
The detector features a low-profile housing with a 360° LED indicator for easy visual confirmation and mounts easily on the standard DB-11 base. Engineered for accuracy, longevity, and ease of maintenance, the HI921 delivers dependable protection in demanding commercial and industrial applications.
Key Features
- Intelligent, addressable heat detector with ASAtechnologyâ„¢
- Optimized for areas where smoke detection is not suitable
- Compatible with Siemens Cerberus PRO and Desigo Fire panels
- Low-profile design with 360° LED status indicator
- Installs easily on the DB-11 detector base
- UL and FM approved