Infrared detection technology forms the backbone of modern fire safety systems, particularly in high-risk industrial environments. The two fundamental types of infrared detectors driving these systems are single-IR detectors and multispectral IR detectors. While both technologies detect infrared radiation emitted by flames, they employ distinct methodologies and offer varying levels of reliability and adaptability to complex industrial settings.
Single-IR Detection Technology
Single-IR detectors rely on specialized infrared sensors calibrated to detect specific radiation wavelengths characteristic of flames. These systems are cost-effective solutions for applications with controlled environments. At Shanghai Gewei, our GW100IR2N model exemplifies this technology with its precision-focused design. Equipped with advanced 32-bit high-precision processing chips and imported low-noise infrared sensors, it detects flames within a wide 100° angle operating range. Its enhanced axial detection distance exceeding 40 meters makes it ideal for smaller spaces and machinery enclosures where maximum coverage is paramount.
<10 seconds for critical scenarios with high-speed variants
Ex d IIC T6 Gb explosion-proof certification ensures durability in harsh environments
Multispectral IR Detection Systems
Advanced multispectral detectors combine infrared radiation analysis with additional spectral ranges for unparalleled accuracy. These sophisticated systems implement advanced AI algorithms to cross-reference multiple bandwidths, virtually eliminating false alarms caused by solar interference or hot equipment. At Shanghai Gewei, our flagship GW820UVIR3 represents pinnacle technology in this category. Featuring breakthrough 32-bit high-precision processors and dual-sensor arrays, it achieves remarkable 60-meter detection ranges while maintaining exceptional spectral discrimination.
Infrared >110° and ultraviolet >120° coverage provides comprehensive360° protection
Our multispectral technology operates through sophisticated signal pattern analysis, distinguishing actual flames through radiation signatures rather than simple temperature thresholds. This approach offers superior reliability in complex environments with transient heat sources or variable background conditions.
Critical Application Scenarios
GW820 series with <1s response time withstands -40°C to 70°C extremes
IP67-rated GW810UVIR2 prevents hazardous material ignition
GW300UVIR3 neighbors suppress false alarms from vehicle exhaust
All detectors incorporate patented Self-Diagnostic Technology to monitor lens contamination and sensor degradation, ensuring continuous operational integrity through automated maintenance alerts.
Choosing between single-IR and multispectral systems requires careful assessment of environmental conditions and risk tolerance. Shanghai Gewei offers unmatched versatility across our detector range:
- From compact GW100IR2N units with 40m coverage to long-range GW820UVIR3 systems spanning 60m+ distances
- Dedicated operating temperature ranges from standard -10°C to 55°C to extreme -40°C to 70°C variants
- SIL2/SIL3 safety-certified options for critical infrastructure applications
Our proprietary sensor engineering ensures 99.9% flame detection accuracy across industrial scenarios. Explore comprehensive solutions tailored to your specific environment requirements through our full product portfolio.