What is the warranty on this product?

This product comes with a  2-year limited manufacturers waranty against manufacturers defects.  The waranty doesn't cover the battery or any damage due to misuse.  All waranty claims will be facilitated through us but the manufactuer holds the final say on whether a claim is approved or denied.  With that said, these devices are very reliable.  90% of the issues we see with them are due to dropping something on the cable and/or being too rough with the sensor jack.  This type of damage can easily be avoided with care and in almost all cases isn't covered by the warranty.