If you have an issue with a Ralston Instruments product we would recommend that you go to our Knowledgebase.  If you have done this and still have an issue please go to our Website at www.ralstoninst.com and browse to Support.  Under Support you will see "Return Material Authorization".

Note that if you have multiple products to return you can do them all on the same RMA, as long as they are all going to the same address, same customer etc.