You are offerding on a Kell Labs Depth Raider model DR1000 speed and temp monitoring system for down rigger fishing.  Contains everything needed to start monitoring speed and temp at depth.   Includes:  display, probe, 25\' coax, coated cable, antenna, power cord, owners manual and extra O ring kit.    Excellent condition and used one season.   Removed from boat when I sold it in the Fall.  Thanks for offerding!