A new heart rate sensor!

The wireless Polar heart rate sensor setup is a pain- the strap has to be on just right with enough moisture on the skin to pick up the signal. Also, any electroluminescent system (EL wire, panel, etc) interfered with the Polar frequency. So I was psyched to find a new wired sensor: http://pulsesensor.com/ I haven't messed around with it yet, but it looks promising.