Hedue HEDU Q2 Manual page 13

Laser radiation
Do not look in the laser
beam even not if you have
>1/4s
optical instruments.
Working temperature
Q2, R1, R2 and R3 with red laser beam:
-20°C to +50°C
R2 with green laser beam:
0°C to +40°C
Protection against rainwater
In the horizontal operation on a tripod the
devices are sufficiently protected against
rainwater.
Only Q2, R2 and R3:
The device is not suitable for the use in the
rain by vertical operation
The device has to be dry before you put it in
the case.
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