The Siemens OH121 Conventional Optical/Heat Combined Detector represents advanced multi-sensing fire detection technology designed for comprehensive commercial fire protection environments. Engineered to provide dual-criteria detection, this sophisticated device integrates both optical smoke sensing and fixed-temperature heat detection mechanisms within a single compact unit, enabling more precise and reliable fire event identification across diverse commercial infrastructure applications.
Optimized for challenging installation scenarios including office complexes, healthcare facilities, educational institutions, and light industrial settings, the OH121 detector delivers robust performance by simultaneously monitoring both particulate smoke concentrations and rapid temperature escalations. Its intelligent design allows for seamless integration with conventional fire alarm control panels, providing installers and facilities managers with a versatile solution that enhances overall system reliability and response accuracy.
Key Features
- Dual-criteria detection combining optical smoke and fixed-temperature heat sensing technologies
- Compatible with standard 4-inch electrical boxes and conventional fire alarm circuits
- Operating temperature range from 32°F to 100°F with fixed temperature activation at 135°F
- Low-profile design minimizing aesthetic impact while maintaining professional installation standards
- UL 268 and UL 464 listed for comprehensive regulatory compliance
- Robust base compatibility with multiple Siemens addressable and conventional panel systems
Specifications
- Operating Voltage: 15-32 VDC
- Standby Current: < 100 µA
- Alarm Current: 20 mA typical
- Dimensions: 6.0″ diameter x 2.0″ height
- Agency Approvals: NFPA 72, UL 268, UL 464, FM Approved
Recommended for commercial fire alarm system installations requiring comprehensive detection strategies, the Siemens OH121 offers fire protection professionals a reliable, technically advanced solution that meets stringent safety performance standards across diverse environmental conditions.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.6 lbs |
|---|---|
| Dimensions | 4 × 4 × 2 in |
| Condition | New |
| Manufacturers | Siemens |
| Part Type | Heat Detector |
