The Yuanguo Thermometer measures the infrared heat generated by the eardrum/forehead and surrounding tissue. Since the eardrum and forehead share blood supply with the temperature control centre in the brain, the ear and forehead accurately reflects changes in the core body temperature.
How to avoid the inaccuracy:
- Please make sure that there is no dirt on the temperature sensor.
- Please make sure that there is no water or any shade on the forehead.
- Please clean the ear canal first when you measuring the ear temperature.
- Please make sure no intense emotion and movement before measuring.
- If the thermometer is transferred between different ambient temperature, please measure after being kept for 30 minutes under stable temperature .
- The thermometer should be in contact with the forehead during measurement.
- Yuanguo Forehead and Ear Thermometer
- Storage Bag x 1
- AAA Batteries x 2
- User Manual x 1