CALL US

Siemens OH921 Multi-Criterion Detector

blog

Gallery Images

blog

Siemens OH921 Multi-Criterion Detector

The Siemens OH921 is an intelligent, addressable multi-criteria detector
Contact Now Contact Now

Key Features

Multi-Criteria Detection:

  • Combines optical (photoelectric) and thermal (heat) sensors
  • Uses advanced signal processing to analyze data from both sensors, reducing false alarms   
Intelligent Addressability:
  • Allows precise location identification within a fire alarm system
  • Compatible with Siemens fire alarm control panels
Enhanced Fire Detection:
  • Responds to a wider range of fire types, including both smoldering and flaming fires   

Advanced Technology:

  • Utilizes a neural network for intelligent signal analysis
  • Incorporates ISO Technology™ for improved system reliability
  • Self testing and self monitoring capabilities
Manual Manual

Detection Technology:

  • Combines photoelectric (optical) smoke sensing and thermal (heat) sensing.
  • Utilizes a neural network for advanced signal analysis.

Heat Sensing:

  • Rate-of-Rise Detection: 15°F/min (8.3°C/min).
  • Fixed Temperature Detection: 135°F (57°C).   
Electrical:
  • Compatible with Siemens addressable fire alarm systems
  • Operates on a two-wire circuit
  • Polarity insensitive via Sure Wire™ technology (in non-isolator mode)  

Environmental:

  • Designed to operate within standard temperature and humidity ranges specified by relevant fire safety standards.
  • Automatic environmental compensation.

Physical:

  • Designed for use with Siemens DB-11 series mounting bases.
  • Features a tri-color LED for 360° status indication.

Approvals:

  • UL 268 Listed (smoke detection)
  • UL 521 Listed (heat detection)
  • FM Approved
  • CSFM Approved
  • ULC Listed

Related Products

No Project Found