AvMap Geosat 6 series - Manual (Page 11)

AvMap - 11
II. III Maintenance
•Do not leave the navigator in direct sunlight for
extended periods. This could compromise the correct
running of your Geosat. If you suspect that the
navigator has been over heated because of sunlight
exposure, let the temperature of the car cool down,
and wait for the device temperature to go down to
normal values before switching it on.
•Do not use oil based products to clean the LCD
surface.