Sper Scientific 800047 Oxygen Pen - Manual (Page 11)

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MEASUREMENT PROCEDURES
Setting the Temperature Unit
1. Press POWER to turn the meter off.
2. Press and hold down the HOLD
button. While HOLD is still being
pressed, press POWER until the
temperature unit (°C or °F) appears
on the display. Release the HOLD
button. The temperature unit will
change from °C or °F (or °F or °C).
Note…
The meter will default to the last
temperature unit selected when turned
off
and then on again.
Auto Power Off
1. To save battery life, the meter will
automatically turn off after 10
minutes of inactivity. Press REC to
disable this function.