Time for an update. Part arrived Monday. Not what I ordered. I ordered a preheat controller and got a safety unit, Started Ebay return process and very shortly had a return authorization and a shipping label. I called Perry Power and explained that I still want the preheat controller. They agreed to relist it on Ebay. Ordered it again. Turns out they really didn't have one. I was told they should have some in a couple of days. Now I take my hat off to Perry Power. They were quick to react to an issue and just as quick to notify and apologize for the inventory issue.