good deal or not..
 

performance bike has this wireless computer heart monitor for 40 bucks its a sports instruments si-90.I really dont know much about these things but it sounds ok to me,just not sure if it is a accurate instrument or not.any input would be great thank you......chuck......

I have one, but I seldom use the HR function, more out of laziness than anything else. All the functions work fine, have had it for a few years.

thanks fo da input