What capability do thermal cameras have at far distances?

Thermal cameras are designed to detect heat emitted by objects, which allows them to excel at detection, especially at far distances. Unlike traditional cameras that rely on visible light, thermal cameras can visualize temperature differences and identify living beings or objects based on their heat signatures. This capability is particularly useful for surveillance and security applications, as it enables the detection of intruders or animals in complete darkness or through obscurants like smoke or fog.

The ability to detect heat over long distances makes thermal cameras an essential tool in various fields, including law enforcement, search and rescue operations, and wildlife monitoring. By focusing on heat signatures rather than visual characteristics, thermal cameras can provide reliable detection capabilities even when conditions are not ideal.