TM 1-1680-359-10
2-7.  OPERATING PROCEDURE (Cont)
(1)
The marker  light also  has a flashguard which may be used for directional aiming of the light.  The 
flashguard is equipped with a blue lens so that flashes can be distinguished from gunfire flashes.  Use 
flashguard with the distress marker light when in a combat zone.
(2)
Check the marker light for operation before departing on a mission.  The batteries screw into the 
bottom of the light case; no spare batteries are provided with the SARVIP.
i.
SEA DYE MARKER.  The sea  dye marker is used for location when in water.  To operate, open packet and
pull tab to release the dye.
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