The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From National Electronics & Watch Co.,Ltd.:
NEWCO Bike Speed and Cadence (BSC) is a Bluetooth Low Energy powerful Bike Speed and Cadence sensor App that let your iPhone 4S built-in Bluetooth 4.0 LE system or later version become a smart fitness tool. When you purchased our NEWCO Bike Speed and Cadence (BSC) sensor(s) and download with this App, the sensor(s) will work with iPhone 4S built-in Bluetooth 4.0 LE system or later version to track Biking Speed and Cadence data. Visit www.national.com.hk for more information on NEWCO fitness products.