Ironman Triathlon Speed & Distance System GPS

Measures outdoor distance with GPS signal Measures realtime speed by distance and time Accurate right out of the box Description GPS unit the size of a deck of cards worn at waist or on upper arm tracks your distance. Wrist monitor is a full-featured sports watch. Displays distance and speed, average and total. Works outdoors only, but does not lose data if you go indoors or lose the satellite signal. No setup needed - it works fine out of the box with no calibration. Uses AAA batteries. Use in any motion sport - running, walking, skating, biking. Easy to switch back and forth between kilometers and miles. Guide Review - Timex Ironman Speed + Distance Monitor Use satellite GPS to view your actual distance and speed whether you walk, run, bike, skate, or ski. The sports watch monitor has lap, stopwatch, countdown time, zone alerts and recall functions, with INDIGLO for night viewing. It communicates wirelessly with the 3 oz. GPS unit worn on your waist or upper arm. It is light and uses 3 AAA batteries (average life 12 hours). It is 99% accurate outdoors with a good view of the sky to acquire satellites. To use it, step outside and turn on the GPS sensor and wait 30-90 seconds for it to acquire the satellite signal. The watch can continuously display your speed, pace, distance, time, timer, etc. It will also give you your average speed and pace and your top speed and pace only includes what you see instruction book is missing everything else is new and unused.