1. Reduce the range of ‘Face Pixel Min’ and ‘Face Pixel Max’. For example, if the target is too close to the camera. Then the temperature will be too high, then we can reduce the ‘Face Pixel Max’ to the point that the camera can not detect the face. Then there is no square on the face, so the camera will not detect the temperature of the target.

2. Black body issue. If there is no blackbody, the blackbody is not enabled or the blackbody is covered, the temperature fluctuation may be big.