I have 2 nos. of Nike Sensor Kit.
They are box packed (USD 19 * 2 = USD 38 or INR equivalent).
I bought them from US

Fits under sockliner of Nike+ ready shoes and syncs with your Nike+ SportWatch GPS, iPhone, or other Nike+ tracking device
Sensor measures pace, distance, time elapsed, and calories burned, transmits wirelessly to your device for real-time feedback
Works with Nike+ SportWatch GPS powered by TomTom; Nike+ SportBand; iPod nano, iPod/iPhone
Requires Nike+ ready shoes; Mac OS X 10.3.9 or later, or Windows Vista, XP (SP2), Home, or Professional; Internet access to connect to Nikeplus.com

Kindly let me know if anyone would be keen to buy these.