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Working Advice
The laser measure (GLM165-27CG
only) is equipped with a radio in-
terface. Local operating restrictions, e.g. in airplanes
or hospitals, are to be observed.
Do not turn on laser remotely using
the Bosch app without line of sight
to the laser tool (GLM165-27CG only). The sudden bright
laser beam may increase the risk of personal injury or
property damage.
Further information on laser measure and apps can be
found on the Bosch product page by scanning the QR
code on Page 7 or the QR code on the box.
General Information
The reception lens (15) and the laser beam outlet (16)
must not be covered when taking a measurement.
The laser measure must not be moved while taking a
measurement. Therefore, place the laser measure, as
much as possible, against or on a firm stop or support-
ing surface.
Influence on the Measuring Range
The measuring range depends on the light conditions
and the reflection properties of the target surface.
Influence on the Measuring Result
Due to physical effects, faulty measurements cannot be
excluded when measuring on different surfaces which
include:
– Transparent surfaces (e.g., glass, water),
– Reflecting surfaces (e.g., polished metal, glass),
– Porous surfaces (e.g. insulation materials),
– Structured surfaces (e.g., roughcast, natural stone).
Also, air layers with varying temperatures or indirectly
received reflections can affect the measured value.
Accuracy Check and Calibration of the Grade
Measurement (GLM165-27CG only)
Regularly check the accuracy of the grade measure-
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