How to properly install the batteries?

How to clean and disinfect the thermometer?

What should I pay attention to when measuring ear temperature?

What is the measurement range of the thermometer?

What should I do if the thermometer cannot be turned on?

What could be the reason if the measurement result is too low or high compared to the normal temperature range?

How to avoid electromagnetic interference affecting the performance of the thermometer?

What is the warranty period for the thermometer?