A man overboard is a sign a ship gives to indicate that a person has fallen overboard into the water and is in need of immediate rescue.
Self Iqniting And Activating Smoke Signal (M.O.B)
Self-Ignight lamp Power Supply Period: 2 hours
Luminous intensity of self-igniting lamp : 2 CD
Self-active smoke emission period: 15 min
Validity: 3 years