Raymarine RD418D 4KW 18'' Digital Radar Radome Scanner E92130 Low h MagnetronRaymarine RD418D 4KW 18'' Digital Radar Radome Scanner E92130 Low h Magnetron The unit works perfectly. It was professionally refurbished and tested in our workshop. It comes with 12 months of warranty. Low hours magnetron is fitted. The RD418D offers a 48 NM range 8 Colour resolution Plug and Play compatibility, Improved radiation pattern and bearing resolution using Propagation Enhancing Geometry, has same mounting pattern as previous generation