I got a new sensor last night.
Only sensor (MA368J/B) is able to order instead of sports kit .
It's easy to install.
Just switch sensor then choose menu Nike+ipod>Settings>Sensor>Link on ipod.
Only one thing to pay attention is old sensor remove away as far as reaching wave.
When sending run data to nike+ site, autologin doesn't work and it atempts to log-in as new user.
But you can also input your id and can link new run data.
11.18km 56'01"