Former user6 years ago000Hello. i have the r17 rowing machine. It says in the instructions that it needs an uncoded 5.3 kHz chest strap. Is this the right one for it? Show in original language (German)tonybo6 years ago • purchased this product+2+20purchased this productThe manufacturer of my device said that the Polar H9 does not work. I checked with Polar. They said it would work. In fact, it works wonderfully with the Polar app.Show in original language (German)Comment