Polar T31 Heart Strap with Chronos?

Steve said:

I have a Polar T31 Heart rate monitor strap (http://www.polarusa.com/us-en/products/accessories/T31_coded_Transmitter) . Can the Chronos receive the signals from this strap?

I won't say that it's impossible because i don't know, but it's highly unlikely that they work.  Polar would have to use the same the RF frequency, modulation scheme, and protocol stack used by Chronos.  If Polar uses a CC430 or CC11xx device, then it might be possible but I don't know which RF device they use.

The heart rate straps from BMi that are listed on the Chronos wiki are known working.