Normal temperature (average core 37°C/98.6°F) can vary slightly based on the person, their age, what they've been doing, the time of the day and which part of the body you take the temperature from (source: https://www.webmd.com/first-aid/normal-body-temperature#1).
Children younger than three months require immediate medical attention when they have a fever, as might children with serious medical problems (source: https://www.webmd.com/first-aid/normal-body-temperature#1). It is recommended always to seek the advice of a healthcare professional, regardless of body temperature, if other issues such as persistent vomiting, refusal to feed, floppiness, drowsiness, stiff neck, seizure, pain on urinating, or problems with breathing get help immediately.
This information and the temperature monitoring device is not intended to diagnose or treat any disease and does not replace the advice of a healthcare professional. RB disclaims any liability for the decisions you make based on this information.
When in doubt, always consult your healthcare professional.