Polar FlowLink: easily transfer your data via USB to your computer and to the Polar Web Service href=" target="_blank">Polarpersonaltrainer.
Polar Running Sensor S1: measures your speed and distance while running or walking. Compatible with the models FA20, FT7, FT40, FT60, FT80 und RS300X.

Requires Windows XP, Vista (32-bit), Windows 7 (32-bit), Mac OSX 10.5 (Leopard) or later.