Ear Thermometer TH839S
Gentle temperature measurement for infants and young children.
(52 Reviews)
Selectable °C / °F
1 Second Quick Measurement
Fever Alarm with Beeper
9 Sets Memory
Ergonomic Design for Easy Handling
- Sensing Technology -
- Measurement Site -
- Measurement Timings -
- Additional Features -
- Power Source -
Ear Thermometer Probe Covers (MC-EP2)
Fits ear thermometer model TH-839S
Normal body temperature is in the range of 36.5–37.5 °C on the average, although it varies somewhat among individuals (gender, age). Additionally, temperature can vary according to physical activities, throughout the day, & due to external factors, e.g. with the change of seasons. Normal body temperature may change during any given day. It is usually highest in the evening. Body temperature is typically elevated after physical activity.
Body temperature is a basic condition for the proper operation of the cells. It is configured by many internal organs with the control of the nervous system on the delicate balance of heat production & heat loss. This mechanism (called thermoregulation) ensures the stable operation of vital functions by keeping the body at optimum operating internal temperature.
Normal temperature varies with the individual & also changes depending on the time through the day.
To find out one's normal temperature, therefore we recommend performing regular measurements under the following conditions:
- Measure with the same thermometer
- Measure at the same area
- Measure at the same time of day
Click here to find out more about Omron’s range of thermometers.
Yes! The most accurate optimal values derive from rectal measurement: 37.0-37.5 °C (98.6-99.5 °F), while oral measurement produces slightly lower results: 36.8° ± 0.4 °C (98.2° ± 0.7 °F). Measurements taken on the skin (armpit, ear, forehead) gives the lowest values out of these types: 36.5 °C (97.7 °F), since these correlate relatively poorly with the core body temperature.
Click here to find out more about Omron’s range of thermometers.
Fever is a medical sign characterized by an increased body temperature above the normal range. Fever is not considered medically significant until body temperature is above 38°C.
Fever is caused by the release of certain chemicals by the immune system, usually as a result of an infection or inflammation. Not every fever needs medical attention, but in young children, if the temperature continues to rise or if there are other worrying symptoms, a doctor should be consulted.
It can be caused by a number of reasons: in most cases by infectious diseases (such as flu & pneumonia), less frequently by hormone imbalance, metabolic disorders, certain inflammatory conditions (such as rheumatoid arthritis) or even extreme sunburn or certain medications & immunizations (vaccines).
Sometimes the cause of a fever can't be identified. If you have a temperature of 38.3 C or higher for more than three weeks & your doctor isn't able to find the cause after extensive evaluation, the diagnosis may be fever of unknown origin.
Sterilization with chemical (including alcohol) might transform the surface of the product. Do not sterilize it with any chemical.
You can clean the pencil thermometer with a cloth containing neutral detergent.
5.0 rating
52 reviews
Easy to use and accurate measurement
An excellent design of which meets beyond expectations. Very well pleased with it. Great job Omron, keep up the good works. Look forward to see more innovative products soon.
It is good. But recently I had readings of 35 deg C. Is there somwthing to worry about?
Convenient and accuracy.
This thermometer is small but can read temperature very fast to minimize discomfort to babies. Highly recommended.
