Bosch Professional GLM 50-27 CG Original Instructions Manual page 19

The front edge of the measuring tool (e.g. when measuring from a table edge)
Press the button to open the Basic settings menu.
Select .
Use the button or
To confirm the selection, press the
Every time the measuring tool is switched on, the last selected reference level is preset.
Subsequent alteration of the reference level of measurements that have already been
taken (e.g. upon display of measured values in the measured value list) is not possible.
Basic Settings Menu
In the Basic settings menu, you can find the following basic settings:
– Changing the reference level (see "Selecting the Reference Level", page 18)
– Switching audio signals on and off
– Switching Vibration on and off
– Setting display brightness
– Switching on and off battery saver mode
ft
– Changing the unit of measurement
– Setting the language
– Grade measurement calibration (see "Accuracy Check", page 36)
– Calling up Device Information
– Factory settings
– Deleting Memory
Press the button to open the Basic settings menu.
Use the button or
To confirm a selection, press the
To exit the Basic settings menu, briefly press the
Bosch Power Tools
button to select the required reference level.
button.
button to select the required setting.
button or the
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button.
button.
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