A simple portable solution to capturing cadence across multiple bikes, it is simply secured to the left shoe either by the quick release strap on the shoe, using the included attachment or simply tucked in the sock, eliminating the need for cable tied sensors on the chain stay and also means it can be used across your stable of bikes
I have used mine whilst travelling as it can be used on a gym exercise bike and will give cadence via Bluetooth to your BT 4 phone. I have had no issues with drop out and although I have not corroborated I have little reason to doubt it's accuracy.
I have about 600 miles on it so far and haven't noticed any wear at all, the new stuff is still on the tread. It is quiet, smooth, and wearing great so far. Very happy with it!