Feature 1Professional multifunction compass, magnetic declination adjustment, high accuracy. 2With 12V LED for easy reading day or night. This compass is and ideal choice for emergencies on board. 3Wide range of applications, suitable for the marine, vehicles, boating, travel, hiking, outdoors, etc. 4The installation is simple and does not require complicated operations, convenient for using. 5Made of premium ABS material, anticorrosion and durable, can withstand harsh Marine environment.SpecificationItem Type: Magnetic Compass Material: ABSPerformance:1. The compass structure material should be non-magnetic, and the pointer is made of high-quality alloy material.2.Pointing Error: No more than 1.503. Friction Error: No more than 1.504. WhirlError: No more than 3.505. Temperature Test: Under the ambient temperature of -30C-+60C, the compass should be without any damage, and the liquid in the sphere should have no change. .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Compass1 x Copper Contact3 x ScrewsNotePlease note that the product requires holes to be punched for installation.