Question

What happens when we hear a click sound on the camera?

Answer 1

Answer:

because on its make a sencior so its notification to us

Answer 2

The clicking sound is normal for microbolometer-based cameras. ... What you actually hear is the camera's internal shutter moving in front of the detector for a breif instant. This happens regularly on uncooled infrared cameras but it will also happen occasioanlly in the cooled infrared models.

hope this will help you❤✌