No lens filter is attached. Attach new, clean lens filter.
The thermometer probe was not
positioned securely in the ear. An
accurate measurement was not possible.
POS = position error
Take care that the positioning of the
probe is correct and remains stable.
Replace lens filter and reposition. Press
Start button to begin a new
measurement.
Ambient temperature is not within the
allowed operating range (50 – 104 °F or
10 – 40 °C ).
Allow the thermometer to remain for 30
minutes in a room where the temperature
is between 50 and 104 °F or 10 and 40
°C.
Temperature taken is not within typical
human temperature range (93.2 – 108 °F
or 34 – 42.2 °C).
HI = too high
LO = too low
Make sure the probe tip and lens are
clean and a new, clean lens filter is
attached. Make sure the thermometer is
properly inserted. Then, take a new
temperature.
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