C. Plath Venus Yacht Compass, 5° Card

C. Plath Venus Compass Specifications: • Full spherical construction with internal gimbal system. • Balanced for use in northern and southern hemispheres. • Accuracy of indication: less than or equal to 1°. Lag error: less than or equal to 2°. Oscillation period: less than or equal to 4.7 sec. These values exceed the ISO norm (International Organization of Standards). • Temperature range: -22°F to 158°F. Corresponds with the ISO norm for commercial shipping. • Vibration resistance exceeds the requirements of the BSH (German Hydrographic Institute). • Seawater resistant light alloy housing with superstrong glass dome that is insensitive to ultraviolet radiation. • Dished card with 1° graduation. • Red dazzle-free illumination for 12 volt (24V by special request.) • Oscillation-free double bottom compensates volume changes in compass fluid. • Accuracy at all angles of heel insured by the full internal gimbal system. • Apparent card diameter: 5-3/4" (150mm). • Cutout diameter: 6" (152mm). • Weight of compass: 6 lbs. 12 oz. • Weight of cylinder: 4 lbs. 1 oz. • Three year warranty on body. • Lifetime warranty on glass dome.