Can I use the MX422 linked below to control the amount of volts going to my D4 pump? Can I even hook up my pump to this display? I dont want just 7v or 12v options. I want everything in between 7 and 12 just like a Rheobus.
http://www.matrixorbital.com/pages/product_view.asp?CatID=5&ProductID=117
http://www.matrixorbital.com/pages/product_view.asp?CatID=5&ProductID=117