Flir T420 Blended Picture in Picture Infrared Thermography

http://www.netzerotools.com/flir-t420-thermal-imaging-infrared-camera
The Flir T420 features Icon in Icon & Thermal Fusion - Blend seeable and today thermal infrared images onscreen so you would be able to clearly identify marks ; use the fusion threshold on the part of isolating hots spot in different particular scene.