The infrared thermometer has been strictly calibrated at the factory, so the measured temperature is normal. If there is inaccuracy in the measurement of body temperature, you need to prepare a mercury thermometer for underarm measurement, according to the results of infrared thermometer measurement, and the thermometer measurement out of the results of comparison, if the error is within 1 ℃ can be accepted. If it exceeds 1 ℃, it is recommended that you need to contact the infrared thermometer after-sales service, the product for certain adjustments and repairs. You can take the average of several measurements, if the error is very large, it is recommended to repair and further replace the infrared thermometer.