Retail price $160.00
Timex 5F891 Digital Speed and Distance Sensor:

Works with all Timex® Ironman Triathlon® Bodylink® and Speed + Distance System watches
Provides distance, pace and speed data in English, metric and nautical units (with compatible watch)
No calibration required ? uses a highly accurate GPS tracking system
Wear on upper arm or waistband (elastic strap and belt clip included)
13-hour battery life from 1 AA battery (included)**
Splash-resistant to IPX7 standard

**Battery life estimates are based on certain assumptions regarding usage: battery life may vary depending on actual usage.

Includes:
Timex 5F891 Speed and Distance Sensor
Elastic strap
Belt clip
User manual
One year warranty