Venture Bulkhead Combidial CompassThe Venture SR-2 is designed primarily for sailboats 16&'; (4.88M) to 36&'; (10.68M) in length.Features: 3 3/4" (95 mm) CombiDial 4 5/8" (118 mm) to 4 13/16" (122 mm) mounting hole Vertical Mounting Angle Through 40 Degrees. Blue LED Night Lighting (12 - 24 Volts) Protective Front and Back Covers Included Exclusive 5-Year Ritchie Warranty Wheelmark Certified Specifications: Approx. Shipping Weight: 2 lb. (907g) Notes: 12/24v lighting is standard Specifications: Read: Both Mounting Style: Bulkhead Backlight: Yes Lubber Lines: Yes Box Dimensions: 7"H x 8"W x 8"L WT: 2.5 lbs UPC: 010342110008 Quick Guide (pdf)Owner&';s Manual (pdf)