This brass clinometer is used to measure the heel of a vessel at sea. Knowing the heel or angle of tilt of a vessel is vital for optimum trim, as well as safety. The Endurance clinometer features a low friction weighted movement that indicates the angle of heel to 1 degree accuracy over a +/- 70 degree range. This instrument is part of the Endurance Collection which is an extensive line of nautical instruments that feature several remarkable benefits. All instruments in the Endurance Collection have a maintenance-free, ultra-hard finish guaranteed to NEVER tarnish. The patented Slide-n-Lock Mounting System eliminates the need for visible mounting screws and is easily removed for necessary adjustments. All instruments are weather-proof and meant for outdoor use.

• Beveled glass crystal
• O-ring seated behind glass for weatherproof construction
• Lifetime warranty on finish and movement