What do thermal cameras detect?

Thermal cameras are designed to detect heat, which is emitted by objects as infrared radiation. This capability allows them to visualize temperature differences in their environment, effectively translating heat into images that can be interpreted. These cameras are especially useful in applications such as surveillance, search and rescue operations, and wildlife monitoring, where visibility in low-light conditions is essential.

By detecting the infrared energy that all objects emit, thermal cameras can identify living beings, machinery, and various other sources of heat, even in total darkness. This principle is quite different from how traditional cameras operate, which rely on visible light to produce images. Thus, thermal cameras are distinct in their function, making them invaluable for any situation where heat detection is critical.