Bigben RR30 Operating Instructions Manual page 7

TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
LIGHTNING FLASH WITH ARROWHEAD SYMBOL-
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated dangerous
voltage within the products enclosure that may be
of sufficient magnitude to constiude a risk of electric
shock to persons.
WARNING
CAUTION
RISK OF ELECTRIC SHOCK
WARNING: SHOCK HAZARD-DO NOT OPEN
DO NOT OPEN
EXCLAMATION POINT- within an equilateral
triangle, is used to indicate that a specific
component shall be replaced only by the
component specified in that documentation
for safety reason.