Duronic IRT3W Manual De Instrucciones página 18

Out of Range Displays
An out of range indicator (either 'HI' or 'LO') will appear if the temperature you
are measuring is either too high or too low for the thermometer to
measure.
In ear mode, a temperature
reading of more than 42.0ºC
(107.6ºF).
In forehead mode, a
temperature reading of more
than 42.2ºC (108.0ºF).
In object mode, a
temperature reading of more
than 100ºC (212.0ºF).
In ear mode, a temperature
reading of less than 35.0ºC
(95.0ºF)
In forehead mode, a
temperature reading of less
than 35.0ºC (95.0ºF)
In object mode, a
temperature reading of less
than 0ºC (32.0ºF)
18
A long beep with the
red backlight.
A long beep with the
red backlight.