Quick Start Guide (BT503)

Choosing a read-out mode (Fahrenheit or Celsius):

1. Install the included AAA batteries into the thermometer.
2. Press the trigger to power the thermometer on.
3. Once "Lo" is displayed, press and hold the "SET" button until 'F-1' appears for a brief second, followed by '0.1'; you can now release the "SET" button.
4. Press the "SET" button two times until "F-3" is displayed.
5. While "F-3" is displayed, use the up or down arrow buttons to change from °F (Fahrenheit) or °C (Celsius).
6. Press the "SET" button two times until the thermometer powers off to save your settings.

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Taking forehead measurements:

1. Press the trigger to power the thermometer on.
2. Press the "SET" button located on the side to change your mode to "Body".
3. While the LCD is displaying "Lo", point the thermometer towards the center of the forehead about 1-2 inches away for optimal measurement.
4. Keep still, and press the trigger to capture the body temperature.