15
Screen Display
Operating Instructions
Displayed State
Sound and
backlight
color
When the memory data is queried,
when there is no memory data
under the current serial number, the
display is as shown.
Remove 2 dry batteries and
re-install the power to clear all
memory data.
When the power is
turned back on, a
long beep, the
backlight is
orange, then turn
red.
Switching between mute and un-mute
In the power-on state, press and
hold the sound switch button for
about 2 seconds to switch the sound
on or off. When the sound is turned
on, it will beep once and the mute
symbol will be displayed when the
sound is off.
The
symbol is displayed in
Mute mode and disappears in
Un-mute mode.
When the sound is
turned on, it
sounds a long
beep and the
backlight is
orange.
Switching between object temperature and body temperature
