Solution:

1.Check the operation mode.Human body temperature measurement must be proceeded with body temperature mode.

2.Check all Settings are factory original settings or not,especially F1 must be 0.

3.It is crucial to pay attention to the measuring area when using an infrared thermometer. The actual detection targets the artery skin temperature either at the forehead or behind the ears. Given that the forehead area is relatively larger and the distribution of arteries varies among individuals, it is advised to perform multiple tests using different positions.

Considering that the ear back area is relatively small and the artery location is easier to find, it is recommended to conduct tests on the ear back whenever possible. It is essential to ensure that the ear back is free from hair, as this can affect the accuracy of the measurements.

What the thermometer detects is the temperature of the baby's forehead artery. When measuring, please aim at four positions: the middle of the eyebrows, the eyebrow position, the temple position, and the ear back position. Take three measurements at each position and record the maximum value obtained.

4.Pay attention to heat balance of the thermometer itself and the tested person.The heat balance of machine means that when the ambient temperature around thermometer changes greatly,please wait for 15-20 minutes firstly before testing.And for heat balance of tested person,the person need to wait 15-20 minutes to clam down before test.

5.Please be aware not to measure the temperature after applying an ice compress, sweating heavily, being exposed to air conditioning, taking a shower, or if the heat balance is not yet achieved.

6.Measuring distance should not be too far away,1-2 cm away from the forehead is recommended.