The Silva 100NBC/FBC Compass comes with battery illumination, multiple mounting options, a main steering scale on the horizontal part of the compass rose and direct reading on the vertical edge.FeaturesIdeal for boats with either a sitting or standing helmsmanCurved lubber lines: Accurate reading from different anglesBuilt-in compensator: Deviation compensator so that you always can keep a steady courseBuilt-in illumination: Enables night navigationProtective cover: Keeps your compass safe from outer damageSpecificationsArticle Number37180-0151Accuracy 0,5 (8.9 mils)Apparent card diameter105mmBuilt-in compensatorYesCard typeConeCompatibilityPowerboatsDimensions130 x 146 x 95mmGimballed cradleYesHeeling angleRoll: 30 Pitch: 30Heeling angle scaleNoIllumination12V, RedLubber linesCentre and 2x side view at 45MaterialABS, AcrylicMemory ringNoMountingBracket or Flush/bulkheadMounting angle0 to +110Protective coverYesTemperature operating range-10C to +70CVariantMagnetic NorthWeight1082gSilva part number100NBC or 100FBC compass