The UST See-Me 1.0 Strobe personal locator light strobes 60 times per minute for maximum visibility in all directions. On the trail or on the water, it's the perfect companion for your pack or PFD ensuring you can be located in an emergency situation.

Features:

28 Lumens
Up to 44 hours run time
Waterproof IPX7
Visible 2.7 miles (4.3 km) on a dark, clear night which exceed USCG requirements of 1 nautical mile (1.9 km) visibility
Easy twist on/off
Lanyard cord and hook-and-loop strap included
Requires 2x AAA alkaline batteries (not included)

Measurements:
Dimensions: 5" x 1" (12.7cm x 2.5cm)
Weighs: 1.8oz (51g)