The Silva 70P Compass comes with battery illumination.The 70P Compass is a bulkhead mount compass designed for yachtsmen that demand absolute accuracy and a steady card in all conditions.The compass handles unlimited slope of the keel line and a 30 heeling angle. The curved lubber line enables swift and clear reading at a glance without parallax errors. With a main steering scale on the horizontal part and direct reading on the vertical edge,70P Compasses are ideal for boats with a sitting as well as a standing helmsman. It can be mounted at most angles and its compact size (70 mm) makes it suitable for smaller boats.FeaturesDouble scales can be read from front and aboveCurved lubber lines create accurate reading from different anglesCompact size: small and flexibleSpecificationsArticle number34990-9011Accuracy 1 (17.8 mils)Apparent card diameter70mm (2.7 inch)Built-in compensatorOptionalCard typeConeCompatibilityKayaks, Powerboats, SailboatsDimensions95x72mmGimballed cradleNoHeeling angleRoll: 30 Pitch: 30Heeling angle scaleNoIlluminationOptionalLubber linesCentreMaterialABS, AcrylicMemory ringNoMountingBulkheadMounting angle+10 to +110Temperature operating range-10C to +70CVariantMagnetic Equator, Magnetic North, Magnetic SouthWeight344g