-
Step 1
Turn the digital thermometer on by pressing a small button usually located on the face of the thermometer. A beep may sound to indicate that the thermometer is ready to be used. Digital thermometers are battery operated and must be turned on and off for proper use.
-
Step 2
Place the thermometer under the tongue for oral use. Make sure that the tip of the thermometer is securely placed under the tongue for the most accurate measurement. Keep the thermometer in place until a beeping noise sounds, indicating the temperature has been read.
-
Step 3
Place the thermometer vertically underneath the armpit for an under-arm reading. This method is used for babies or young children and the temperature reading will be lower than an oral temperature.
-
Step 4
Cover the tip of the thermometer with a water-soluble jelly for rectal use. This type of reading is used for babies or when other methods cannot be used. Gently insert the tip of the thermometer no more than 1/2 inch into the rectum and hold thermometer until the temperature is registered.
-
Step 5
Recall the last temperature taken by holding down the on/off button. This function comes on most modern digital thermometers and is useful when keeping track of temperatures.
-
Step 6
Clean the thermometer by washing with warm water and antibacterial soap. Soak a cotton ball with rubbing alcohol and wipe the thermometer to disinfect.












