Make sure the thermometer is set to the position that you would like to read the temperature in:
- For rectal readings: Set to "rct" and make sure that the arm position is down and use the rectal position
- For oral readings: set to "orl" and make sure that the arm is flipped open and extended out and placed under the tongue
- For underarm readings: set to "udr" and make sure that the arm is flipped and extended out, place under arm