FDK FT-F41 User Manual Download Page 2

How to switch Fahrenheit to Celsius degree?

1.Turn on Thermometer.
2.Press and Hold the SET button for 1 second until 
you see ‘F’ icon blink in the upper right corner of the 
display screen. Continually press SET button to 
change ‘F’ to ‘C’ icon.

Repeat the process to change the thermometer 
back to its original Fahrenheit setting.

How to switch Voice On/Off?

1.Turn on Thermometer.
2.Press and Hold the SET button for 3 ~ 5 seconds 
until you see ‘ON’ or ‘OFF’ icon in the center of the 
display screen. Continually press the SET button 
can allow you to prompt to either ‘ON’ or ‘OFF’ mode.

How to switch languages?

1.Turn on Thermometer.
2.Press and Hold the SET button for 8 seconds until 
you see ‘01’, ‘02’….’06’ icon in the center of the 
display screen. Continually press the SET button, 
can allow you to prompt to ‘01’ for English mode, 
‘02’ for Spanish mode.

How to delete all memories?

1.Turn on Thermometer.
2.Press the M button to memory mode first. 
Continually press and Hold the M button for about 5 
seconds until you see ‘_ _ _’ icon in the center of the 
display screen. It means all memories are all deleted.

It may cause different measured results 

depending on various of skin condition, 

thickness and body position.

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