Jumper JPD-FR412 Manual De Instrucciones página 18

Screen Display
Switching between mute and un-mute
Switching between object temperature and body temperature
Operating Instructions
Displayed State
The display is as shown , when
there is no more data checked while
recalling memories. Remove 2 dry
batteries and after 10 seconds
re-install the power to clear all
memory data.
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.
15
EN
Sound and
Backlight Color
When the power is
turned back on,
there are a long
beep and a green
backlight, which
then turns into red.
When the sound is
turned on, it
sounds a long
beep and the
backlight is
green.