FLIR 427-0046-01-00 SR-309 Analog Fixed Thermal Camera 50MM
When perimeter detection demands exceed what visible light cameras can deliver, thermal imaging closes the gap. The FLIR SR-309 with 50mm lens provides analog thermal surveillance for integrators specifying long-range detection in complete darkness, through smoke, light fog, and challenging environmental conditions where traditional cameras fail. This fixed-position thermal camera addresses critical detection needs across utility substations, industrial facilities, and wide-area perimeters where intrusion detection cannot depend on ambient lighting.
Key Features
- 50mm fixed lens configuration optimized for extended detection range and narrow field-of-view applications
- Analog video output for direct integration with existing CCTV infrastructure and legacy recording systems
- Thermal imaging technology operates independently of visible light conditions and active illumination
- Fixed mounting design eliminates mechanical complexity for permanent installation reliability
- Detection capability maintained through darkness, smoke, light fog, and dust conditions
- Passive thermal sensing eliminates light pollution concerns in environmentally sensitive areas
- Detects heat signatures from intruders, vehicles, and equipment across wide detection zones
The SR-309's 50mm lens delivers the narrow field of view required for long-range detection corridors where identifying thermal signatures at distance determines response time. Integration follows standard analog camera workflows—connect to existing matrix switchers, DVRs, or analog-to-IP encoders already deployed. No network infrastructure modifications required for sites maintaining analog CCTV backbones. The fixed lens eliminates motorized zoom mechanisms that introduce failure points in outdoor deployments subject to temperature extremes and weather exposure.
Deploy the SR-309 where detection cannot rely on site lighting, where adding illumination creates security vulnerabilities or operational conflicts, or where environmental conditions regularly obscure visible light camera performance. The thermal sensor detects temperature differential between human targets and background environment—providing detection capability when conventional cameras deliver unusable images. Pair with visible light cameras on the same structure for verification workflows, using thermal for detection triggering and visible cameras for forensic detail capture once targets enter illuminated zones.
