A return authorization (RA) is a numbered authorization provided by HZXY (the manufacturer) to allow the return of a product. Upon requesting authorization to return a product in need of repair and/or calibration, an RA# will be issued to you which will serve as your confirmation and will also be used to track your equipment through the entire repair process. When equipment properly labeled with the RA number arrives at our receiving dock, our staff will immediately know why this equipment was sent to us, and what needs to be done to it. This process is documented in our ISO 9001 approved work procedures