Excellent condition! Watch is in great shape and works perfectly with a brand new battery. Garmin GPS unit is untested but is complete and appears functional. Using the very latest in digital technology, the Bodylink System is a network of up to 4 devices worn on the body that act together as a single information and sport monitoring system. The Timex, Ironman Triathlon Bodylink Performance Monitor is the essential element to the Bodylink System by providing real-time workout data. It teams with the Timex Digital Heart Rate Sensor and the Timex Speed + Distance Sensor to simultaneously provide comprehensive performance feedback. Speed + Distance Sensor features Works with highly accurate GPS satellite tracking system Includes adjustable arm strap and belt clip Continuous odometer English, metric or nautical units Automatic time correction No calibration necessary 99% distance accuracy in environments with a clear view of the sky (better than 95% distance accuracy in most other environments) Batteries included Sensor - Splash-resistant Ironman Triathlon Bodylink Performance Monitor features 100-hour chronograph with lap/split either in large digits 100-lap memory with recall of Bodylink System data Alerts for targeted heart rate zone, pace, speed and distance 100-hour, 3-mode countdown timer 5 alarms settable for daily, weekday, weekend, or weekly with 5-minute backup INDIGLO night-light display NIGHT-MODE feature 2 year battery life Watch - Water-resistant 50 meters