Empower your Timex Heart Rate Monitor with Timex 3D GPS Sensor for maximum feedback on exact speed, pace distance and change in altitude!

Timex 3D GPS Sensor via the collection of data from the Global Positioning Satellite network enables the following features data to be displayed on compatible watch displays and recorded using the Timex Data Recorder 2.

Key Features

• Exact Speeds; actual, average and maximum speed
• Exact Pace; pace, average pace and maximum pace
• Exact distance: tracks workout distance and altitude
• Product is supplied with adjustable arm band for upper arm use, or belt clip
• Single AAA battery