Hedue HEDU Q2 Manual page 18

Turn off self-levelling (R1, R2)
You can turn off self-levelling by pressing this key.
The unit will rotate in every position.
Automatic drift system (Tilt)
You can turn on tilt by pressing this key. When the light is
flashing slowly, it is in tilt mode. When the light is flashing
quickly, the laser has been shaked and will not level again.
Energy save mode (R1 only)
With this button the R1 is put into a rest condition which
saves the power of the accumulator. The rotation stops and
the laser diode is switched off. Through this, the energy
consumption is reduced considerably. All chosen settings
are kept.
In the rest condition the supervision of the horizontal
setting is continued by self levelling or tilt function.
Pushing the button again will set the R1 back to normal
business.
Charging condition (R3)
This symbol shows the state of charge, when the charger is
not connected.
18
press 3
seconds