IR thermal imager/camera can be used widely in industrial inspection, building inspection, medical diagnostics , firefighting and so on.
Watershed temperature monitoring and monitoring wild game habitats
Detection of energy loss or insulation defects in buildings in order to reduce HVAC energy consumption
Piloting of aircraft in low visibility (IFR) conditions
Warning drivers about deer and other animals on the road
Locating living beings (through smoke) and pinpointing sources of ignition during firefighting operations
Search and rescueoperations for missing persons especially in wooded areas or water.
Detecting leaks of natural gas and other gasses.
Monitoring active volcanoes.
Detecting heat in faulty electrical joints.