conradt Member

I use mine and usually do between 250-350 cals during a 30-40 min session.

Polar has a bunch of different ones, that are in the $100 range...that's about as low as I've seen them. Most sporting goods stores have them, Amazon.com too. It's really worth the investment to know exactly how much you burn. Sometimes it agrees with the machines in the health club, sometime they don't. Most health club…