When you put it in the armpit, you should dry the sweat in the armpit with a towel and clamp it tightly against the armpit skin, and when you put it in the oral cavity under the tongue, you should pay attention to keep the probe under the tongue. Placed in the rectum can choose to lie on the side or lying down, about 20 seconds after the beeping sound will be heard again and the LED display screen to stop flashing, this time the temperature is measured, you can read out the value directly on the screen. After the measurement is completed, turn off the power switch in time.