Bosch GRL4000-80CH Operating/Safety Instructions Manual page 23

able remote control via a smartphone with a
Bluetooth® interface.
The Bosch Leveling Remote App application
(app) is required to use this function. You can
download this in the app store for your ter-
minal device (Apple App Store, Google Play
Store).
Information about the system requirements
for a Bluetooth® connection can be found on
the Bosch website at www.bosch-pt.com
When remote controlling via Bluetooth®, poor
reception conditions can cause time delays
between the mobile terminal device and the
laser level.
app without line of sight to the laser tool.
The sudden bright laser beam may increase
the risk of personal injury or property dam-
age.
Ensure there are no bystanders in the direct
path of the laser beam before turning on the
laser remotely.
To switch on Bluetooth® to con-
trol remotely via the app, briefly
press the Bluetooth® button (7).
The indicator for establishing a
connection with the app will appear on the
display. Ensure that the Bluetooth® interface
is activated on your mobile device.
It will be confirmed on the display
whether a connection has suc-
cessfully been established. The
existing connection is visible on
the Bluetooth® connection indicator (b) on
the home screen.
If no connection could be estab-
lished, an error message will ap-
pear on the display.
The connection between mobile end device
and laser level is established after the Bosch
application has started. If multiple active la-
ser levels are found, select the appropriate
laser level. A connection will be established
automatically if only one active laser level is
found.
The Bluetooth® connection may be interrupt-
ed if the distance between the laser level and
the mobile device is too great or is blocked,
and if there are any sources of electromagnet-
ic interference. In this case, another attempt
to establish a connection will automatically
begin.
Do not turn on laser re-
motely using the Bosch
To switch off Bluetooth® to con-
trol remotely via the app, press
the Bluetooth® button (7). The in-
dicator for a terminated connec-
tion will appear on the display and the Blue-
tooth® connection indicator (b) on the
standard screen will go out.
The Bluetooth® function is switched on by
default.
Sleep mode
During breaks from work, you can set the
measuring tool to sleep mode. All your set-
tings will still be saved.
sequently appears the on/off button (11) as
often as required until sleep mode has been
selected. Confirm your selection with by
pressing the slope button (14).
Alternatively, you can switch on sleep mode
by pressing the sleep mode button (28) on
the remote control or leveling remote app.
line of sight to the laser tool. The sudden
bright laser beam may increase the risk of per-
sonal injury or property damage.
Ensure there are no bystanders in the direct
path of the laser beam before turning off
sleep mode remotely.
When sleep mode is switched on,
the sleep mode symbol will be indi-
cated on the display. The status in-
dicator (12) will slowly flash green.
The shock-warning function will remain acti-
vated and all settings will be saved.
To switch off sleep mode, briefly press the on/
off button (11) on the measuring tool or press
the button for sleep mode (28) on the remote
control.
You can also switch off the measuring tool
while it is in sleep mode by pressing and hold-
ing the on/off button (11) for an extended
period of time. All other buttons on the mea-
suring tool and the remote control will be de-
activated.
It is also possible to switch sleep mode on
and off via the Bosch Levelling Remote App.
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To switch on sleep
mode, briefly press the
on/off button (11). In
the menu which sub-
Do not switch off sleep
mode remotely without