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The numbering of the product features
shown refers to the illustration of the
tool on the graphic page 2.
1 On/Off switch
2 Battery compartment
3 Tripod mount 1/4-20
4 Magnets
5 Outlet for vertical laser dot
6 Outlet for down plumb dot
7 Outlet for front horizontal laser dot
8 Outlet for side horizontal laser dot
-7-
Features
Working range
(typical) . . . . . . . . . . . Up to 100ft (30m)
Accuracy Vertical (up) . . ±1/4in. at 100ft
(±6mm. at 30m)
Level. . . . . . . . . . . . . . . ±1/4in. at 100ft
(±6mm. at 30m)
Plumb Down . . . . . . . . . . ±1/4in. at 10ft
(±6mm. at 3m)
Self-Leveling Range . . . . . . . . . . . . ±5°
Operating
temperature. . . . . . . . . . . . . 32°F~104°F
(0°C ~40°C)
Batteries. . . . . . . . . . . . . . . 3 x 1.5V AA
Weight . . . . . . . . . . . . . . 1.2lb (0.54 kg)
Tripod Mount . . . . . . . . . . . . . . . . 1/4-20
Laser Class . . . . . . . . . . . . . . . . . . . 3R
Laser Type . . . . . . . . . . . . . 630-670nm
<5mW max.
Initial Operation
• Protect the tool against moisture
and direct sun irradiation.
• Do not subject the tool to extreme
temperatures or variations in
temperature.
For an example, do not leave it in a
vehicle for long periods. In case of
large variations in temperature, allow
the tool to adjust to the ambient
temperature before putting it into
operation. In case of extreme
temperatures or variations in
temperature, the accuracy of the tool
can be impaired.
• Avoid heavy impact or dropping
of the tool. After heavy exterior
impact on the tool, an accuracy
check should always be carried out
before continuing to work .
Switching On and Off
To switch on the tool, press the On/Off
switch 1 once briefly. Immediately after
switching on, the tool projects the three
laser beams (Plumb Up, Plumb Down,
Level ) from the exit openings 5, 6, and
7. Press the On/Off switch 1 twice
briefly, the tool projects the four laser
beams (Plumb Up, Plumb Down, Level
and 90° reference Beam) from the exit
openings 5, 6, 7 and 8.
Working Advice
The GPL4 has built-in magnets to
mount to a metal surface to help when
transferring points.
Technical Data
Operation