Unless you purchased an extended warranty, this period is five years after the purchase date. The RMA process begins with you contacting AKCPs Support Team, who will determine if the sensorProbe is faulty. When contacting AKCP, please provide the MAC address of the unit If the sensorProbe is determined to be faulty and is confirmed to still be covered under your warranty plan, then AKCP will provide you the RMA instructions for getting you a replacement unit at no cost Please contact the AKCP Support Team at [email protected] for instructions on the RMA process