3M EM 550GPL Bedienungsanleitung Seite 8

Instructions
GB-8
Slide the batteries
into the battery
1B
compartment
as shown in the
illustration on the
battery cover and
replace cover.
To check if
1C batteries are
installed properly,
turn the power
switch to ON.
The optical lens
will illuminate in
red. Turn the
power switch
to OFF.