FLIR SR-112 Analog Fixed Thermal Camera

FLIR SR-112 Analog Fixed Thermal Camera

Overview

The FLIR SR-112 is a compact, fixed thermal imaging camera designed for stationary surveillance and industrial monitoring applications. This analog thermal camera delivers consistent infrared imaging with a 19mm fixed lens, making it suitable for installations requiring long-range thermal detection without moving parts or power-intensive PTZ mechanisms. The SR-112 integrates directly into analog video surveillance systems, providing thermal data capture for perimeter security, equipment monitoring, and facility protection.

When this is the correct choice

The SR-112 is the right choice when your deployment requires a straightforward analog thermal camera for fixed monitoring points. Select this model if you are integrating into legacy analog infrastructure, need cost-effective thermal imaging without digital encoding overhead, or require a compact form factor for space-constrained installations. The 19mm fixed lens provides a defined field of view suitable for mid-range thermal surveillance. This camera is ideal for industrial facilities, perimeter monitoring, equipment condition monitoring, and outdoor thermal detection applications where analog signal delivery is preferred or required.

When to choose a different model

If your facility requires networked thermal imaging, high-frame-rate video encoding, or integration with IP-based VMS platforms, consider a network thermal camera instead. The SR-112's analog output limits compatibility with modern digital surveillance architectures. If you need variable focal length or pan-tilt-zoom capabilities, a different thermal camera form factor will serve your needs better. Applications requiring edge analytics, on-device video processing, or cloud-native deployment should evaluate networked thermal alternatives.

Optics and field of view

The SR-112 features a fixed 19mm thermal lens. This focal length provides a defined, medium field of view appropriate for mid-range thermal detection. The fixed lens design eliminates mechanical complexity, reducing maintenance and calibration requirements over the lifetime of the installation. Integrators should verify the specific field of view (horizontal and vertical angles) against facility layout and detection distance requirements during site surveys.

Imaging performance and low light

As a thermal imaging camera, the SR-112 operates independently of visible light, performing equally in complete darkness, bright sunlight, fog, rain, and smoke. Thermal imaging detects heat signatures from objects and living subjects, providing reliable detection and monitoring regardless of ambient lighting conditions. This characteristic makes the SR-112 particularly valuable for 24/7 perimeter protection, equipment monitoring in low-light industrial environments, and outdoor surveillance where visible-light cameras would struggle.

Analytics and edge capabilities

The SR-112 is an analog thermal sensor. Advanced analytics, object detection, and on-device processing are not supported directly by this model. For thermal analytics applications, pair the SR-112 with analog-to-digital converters and downstream video management software capable of processing thermal streams. Some VMS platforms and thermal analysis software accept analog thermal video input and apply post-capture analytics.

Video encoding and streaming

The SR-112 outputs analog composite video. No digital encoding (H.264, H.265, MJPEG) is performed by the camera itself. The analog signal must be digitized at the edge (via analog video servers or capture cards) if integration with digital systems or remote streaming is required. This design keeps the camera simple and reduces power consumption, but requires analog-capable infrastructure for signal routing.

Network and security

The SR-112 is an analog camera and does not include network connectivity, IP addressing, or digital cybersecurity features. It operates as a closed analog system. Network security considerations apply at the point of analog-to-digital conversion if the thermal stream is digitized and transmitted over networks. Analog systems are inherently resistant to remote cyber attacks at the camera level, as they do not support remote access protocols or firmware updates.

Environmental and durability ratings

The SR-112 is built for industrial thermal imaging use. Integrators should verify the camera's operating temperature range, humidity tolerance, and mechanical durability specifications in the technical datasheet. Thermal cameras typically operate reliably across extreme temperature ranges due to their infrared sensing principle. Confirm IP and IK ratings (if applicable) to validate suitability for exposed outdoor mounting, washdown environments, or vibration-prone facilities.

Power and installation notes

The SR-112 requires a 12V DC or 24V AC power source (confirm voltage requirement in product documentation). The compact form factor supports wall, ceiling, or pole mounting. The single analog video output (BNC connector) connects directly to analog video recorders, multiplexers, or analog-to-digital capture devices. Installation is straightforward: mount the camera, supply power, and connect the analog video cable to your surveillance system. No network cabling or PoE infrastructure is required.

What is included

Contact us for package details.

Marty Allison

I've evaluated the FLIR SR-112 for several perimeter security and industrial monitoring deployments. This analog thermal camera delivers reliable heat signature detection in applications where visible-light imaging falls short. The 19mm fixed lens provides a practical balance between field of view and detection distance for mid-range fixed monitoring points. The SR-112 integrates cleanly into analog surveillance systems without requiring network infrastructure or digital encoding overhead.

Technical Highlights:

• Thermal imaging: Operates in complete darkness and adverse weather; detects heat signatures independent of visible light
• Fixed focal length: 19mm lens delivers defined field of view suitable for perimeter and equipment monitoring
• Analog output: Direct integration with analog video infrastructure; no network dependencies
• Compact form factor: Space-efficient mounting for installations where camera size is constrained

Deployment Considerations:

• Confirm power supply (12V DC or 24V AC) availability at the installation site before ordering
• If your facility requires digital encoding, IP streaming, or VMS integration, digitize the analog thermal output at a central capture point
• Plan for analog cable runs and verify BNC connector compatibility with your existing infrastructure
• Thermal imaging requires clear line-of-sight to targets; reflective surfaces and thermal noise sources (steam, hot machinery) may affect image quality

The SR-112 is a practical choice for facilities building analog thermal surveillance systems or upgrading perimeter detection in industrial environments. Its simplicity and thermal independence from lighting conditions make it a reliable complement to visible-light cameras in comprehensive security strategies.