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The numbering of the product features shown
refers to the illustration of the measuring tool on
the graphic page.
1 Exit opening for laser beam
2 Operating mode button
3 Battery low indicator
4 On/Off switch
5 Magnets
6 Tripod mount 5/8”
7 Tripod mount 1/4”
8 Latch of battery lid
9 Battery lid
10 Laser warning label
11 Serial number
12 Laser viewing glasses*
13 Laser target plate
14 Measuring plate with stand*
15 Universal holder*
16 Tripod*
17 Protective pouch*
* The accessories illustrated or described are not
included as standard delivery.
Please refer to the page with the representation of the measuring tool while reading the operating
instructions.
The measuring tool is intended for determining and checking horizontal and vertical lines as well as
plumb points.
Product Description and Specifications
Intended Use
Product Features
Technical Data
Point and Line Laser GCL 25 Professional
Article number
3601K66A10
Working range
1
– Laser lines
– Horizontal point beams
– Point beam, upward
– Point beam, downward
30 ft (10 m)
100 ft (30 m)
30 ft (10 m)
15 ft (5 m)
Levelling Accuracy
– Cross line (Up to)
– Horizontal point (front/right/left)
– Vertical point (upwards/downwards)
±1/8 in @ 30 ft (±0.3 mm/m)
±3/8 in @ 100 ft (±0.3 mm/m)
±9/16 in @ 30 ft (±0.5 mm/m)
Self-leveling range, typically
± 4°
Leveling duration, typically
< 4 s
Operating temperature
3
+14°F to +122°F (–10 to +50°C)
Storage temperature
-4°F to +158°F (–20 to +70°C)
Relative air humidity, max.
90%
Laser class 2
Laser type 635nm, <1mW
C
6
1
Tripod mount 5/8"– 11, 1/4"– 20
Batteries 4 x 1.5v LR06 (AA)
GCL 25 Manual with translations.indd 7 4/24/12 8:29 AM