Telematrix DC640 - Manual (Page 39)

Keep the telephone dry. If it gets wet on the outside,
wipe it dry immediately. Liquids might contain minerals
that can corrode the electronic circuits. Do not touch the
unit if submerged in water. Call for assistance.
Use and store the telephone only in normal temperature
environments. Temperature e xtremes ca n s horten t he
life of electronic devices, damage batteries, and distort
or melt plastic parts. Avoid direct sunlight.
Keep the t elephone a way f rom excessive dus t and di rt
that can cause premature wear of parts.
Wipe the te lephone with a damp c loth o ccasionally to
keep it looking new. Do not use harsh chemicals, clean-
ing solvents, or strong detergents to clean the unit.
39