FLIR Marine: Camera Resolution and Range

Choosing the Right FLIR Marine Thermal Camera

When selecting a FLIR Marine thermal camera, understanding range and resolution are key. How far do you need to see for safe navigation? What level of detail is required to detect vessels, objects, or activities of interest? 

FLIR Marine offers standard and high-resolution thermal cameras. Resolution, measured in pixels, determines image clarity: 

• Standard resolution thermal: ~320 x 240 pixels, is ideal for small recreational boats or for boaters looking for a lower cost entry into thermal camera technology.  Examples include the FLIR M232 and M332 models. 
• High resolution thermal: ~640 x 480 pixels, suitable for boaters looking for the best performance.  High resolution thermal is the first choice of commercial boats and marine first responders.  The FLIR Ocean Scout Pro offers high-resolution performance in a handheld camera, while that M364, M364C and M400 are excellent fixed-mount options. 

Each pixel functions as an infrared thermometer, detecting temperature variations and converting them into an image. More pixels equate to greater detail: 

• Standard resolution: ~76,000 pixels 
• High resolution: ~307,000 pixels

Higher Resolution Thermal Image.

Lower Resolution Image.

Enhanced Detail & Range with More Pixels 

Similar to digital cameras, higher pixel density improves image quality. With more pixels, thermal cameras capture subtle temperature variations, revealing finer details for easier object identification. In marine environments, high-resolution cameras offer long-range detection advantages. A small object on the horizon might be indiscernible until it fully occupies a pixel. High-resolution cameras mitigate this by filling four times as many pixels at any distance—improving object clarity. 

Essential for Search & Rescue (SAR) & Navigation 

High-resolution cameras are vital for SAR missions, where detecting a person in the water is crucial. Unlike on land, only the head and arms are visible above water, making pixel density critical for identification. FLIR thermal cameras also enhance safe navigation, helping boaters avoid floating hazards like lobster trap buoys, pilings, wellheads, and debris. 

Tailored Solutions for Every Mariner 

In summary, choose a standard resolution FLIR camera for cost effectiveness and close-range use.  Or step up to high resolution FLIR thermal for open-water navigation, surveillance, and long-range target detection. With FLIR Marine thermal cameras, mariners gain enhanced visibility, improved safety, and reliable detection—day or night.