Explorer CompassFeatures:2 3/4 (70 mm) Easy to Read Direct Reading DialAdjustable and Removable with Bracket and ThumbscrewsInternal Green Night IlluminationBuilt-in Compensators to Easily Adjust for DeviationScientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial MovementPowerful DirectiveForce Magnets for Fast Heading Lock-onMovable Sun ShieldHigh Temperature Composite Construction for Extended Operating Range100% RepairableExclusive 5-Year Ritchie WarrantyApprox. Shipping Weight: 1lb (454g)Notes:All compasses come standard with 12v lighting. 24v lighting option is available. Some custom built OEM models may have different lighting.