1. Make sure ‘thermal mapping’ and ‘thermal calibration is configured correctly’ by checking if face square in thermal image is covering the face and the cross is in the middle of target’s forehead.

2. Check if the temperature data is inconsistent with the actual temperature, the temperature may be too high;

3. Check if you have installed the black body within the thermal view and if the black body parameter is configured correctly in ‘thermal calibration’. The ‘Target temperature’ of black body should be 40, the same with the actual temperature set on it.

4. Check if there is high temperature object near face area. Because, the camera may be measuring the hot object.

5. The temperature of target’s forehead is indeed high, causing by direct sunlight or target is just coming from a hot place.