LIGHT RULES
Weems & Plath

Light Rules. If you’ve ever been on the water at night and wondered if the lights you see are from an approaching or fleeing vessel, or if you wonder if the vessel is a fishing trawler or super tanker, then this handheld tool is for you. Simple to use, it shows the actual view of vessels for port, starboard, bow and stern lights. It identifies 60 light configurations and shows audible signals for restricted visibility, maneuvering and warning. Light Rule is inexpensive security for night travel, and is great for navigation classes and CG exams too!

The clever slide-action (with subtle detents) allows lining up objects seen so as to display them under a magnifying lens for easy reading All units are made of durable plastic (size 5 x 16 inches) and store in a vinyl sleeve. SW 0.4 lb.