Had quite a few stations with chest strap from Polar - beginning with the T31 coded (plastic / no battery change) concluded the WearLink coded with textile chest (replaceable battery), and now the H2. The textile chest is even easier and more comfortable to wear. The station H2 can I use with various Polar heart rate monitors, because it sends on the two frequencies 5 kHz and 2.4 GHz and battery change can also perform. - My absolute recommendation!
