Apendix
The QS3 was developed and manufactured for years of trouble free
operation and even though the unit does not require special care the
following precautions should be considered:
Avoid contact with corrosive and abrasive substances.
Do not clean the unit with solvents.
Do not leave the unit display exposed to direct solar light for
prolonged periods of time as this could damage the display.
Remove the batteries if the unit will be stored for an
extended period of time.
Remove the transducer using the connectors and not the
cable.
Do not twist or strangle transducer cable.
Do not expose the unit to temperatures below -10°C / 14°F or
above 50°C / 122°F.