How do you change Celsius to Fahrenheit on Safety First instant ear thermometer?

Answer:
most thermometers have two buttons on and the take temperature, while its off hold the take temp. button for 10 to 15 seconds until it starts flashing Celsius or Fahrenheit when this happens use the take temp. button to choose either do not turn off the unit it will take a moment to set when it starts flashing again it is safe to turn off.
First answer by ID1109827361. Last edit by ID1109827361. Question popularity: 2 [recommend question].