SIMRAD ROBERTSON RGC50 Gyrocompass Master Compass w/ GI50 Static Inverter GM-10You will receive what you can see in the photos. Simrad RGC50 Gyrocompass with GI50 Static Inverter Unit Labeled also TOKIMEC GM 10 (replacment unit) Model: 000 10124 001 The RGC50 is a compact gyrocompass, designed to enhance the navigation capabilities on small commercial, fishing vessels, and large pleasure yachts. A gyrocompass eliminates the inconvenience and limitations of magnetic compasses, and provides a variety of electrical outputs to