Dirty probe tip
Please refer to the cleaning process in the manual to make sure the cleanliness of probe tip.
Unstable human status, such as: hot or cold baths, physical exercise, smoking and and or drinking hot and cold beverages, etc. Please avoid exercise, bathing for 30 minutes prior, keep the forehead clean and dry before measurement.
Unstable environment, such as: the vent of air conditioning or fan. Make sure the thermometer has been at room temperature for 15 minutes before use.
Wrong measurement area
Users should measure the correct position as Fig. 1 shown on page 13.
Wrong measurement way
When scanning, the probe should face the middle of the forehead area & the measurement distance should be as close as possible.