Selling this New GPS Receiver (# AS GR50) it fits these units below. Comes with packaging and product manual.
1155c, 1157c, 1158c, 1158c DI, 1197c SI, 1198c SI, 718, 728, 768, 778C, 778c HD, 788C, 788ci, 788ci HD, 788ci HD D, 798C SI, 798ci SI, 798ci SI HD, 858c, 858c DI, 898c SI, 917C, 947C, 955c, 957c, 958c, 958c DI, 967C 3D, 997c SI, 998c SI
It was used for couple hours for a GPS test on my 997c SI unit. It works great.
Asking $125.00