The Siemens OH921 Multi-Sensor Detector represents advanced fire detection technology designed for comprehensive commercial and institutional environments. This intelligent addressable smoke detector utilizes sophisticated dual-sensing technology to provide superior fire event recognition across diverse installation scenarios, including office complexes, healthcare facilities, educational institutions, and high-traffic commercial spaces.
Engineered for precision and reliability, the OH921 integrates photoelectric and thermal sensing elements to deliver enhanced detection capabilities beyond traditional single-technology smoke detectors. Its advanced algorithm allows for improved discrimination between genuine fire events and nuisance alarm conditions, ensuring optimal system performance and minimizing false alarm potential.
Key Features
- Dual-technology multi-sensor design combining photoelectric smoke and heat detection
- Compatible with most addressable fire alarm control panels using standard communication protocols
- Field-adjustable sensitivity settings for customized environmental adaptation
- Low-profile mounting design facilitating easy installation in suspended ceilings and tight spaces
- Built-in LED indicator for visual status monitoring and commissioning verification
- UL 268 and NFPA 72 compliant for comprehensive fire detection standards
Specifications
- Operating Voltage: 15-32 VDC
- Standby Current: 250 µA typical
- Alarm Current: 5 mA maximum
- Temperature Range: 32°F to 100°F (0°C to 38°C)
- Humidity Range: 10% to 93% non-condensing
- Agency Listings: UL, FM, CSFM
The OH921 Multi-Sensor Detector is ideally suited for commercial fire alarm applications requiring sophisticated detection technology, including HVAC-integrated systems, large open spaces, and environments with variable ambient conditions. Its intelligent design provides reliable fire event recognition while maintaining system integrity and reducing unnecessary alarm activations.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 5 × 5 × 2 in |
| Condition | New |
| Manufacturers | Siemens |
| Part Type | Smoke Detector |
