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7. STORAGE AND MAINTENANCE
The unit is a sophisticated precision optical instrument
equipped with laser and electronics. Therefore, it should
be handled with due care.
Keep away from direct sunlight.
Avoid impacts, jolts, dust, moisture, and sharp
changes of temperature.
Do not use the device at temperatures higher than
50
o
C (122
o
F).
Do not touch optical surfaces. Doing so may damage
the anti-reflection coating.
Clean optical surfaces only with professional camera
lens cleaning supplies.
Clean the exterior of the unit with a soft clean cloth.
Keep the unit away from heating appliances and
central heating.
Remove the battery when storing the device for long
time.
All repair works must be performed by an authorized
service.