Up for bid is a used, but in solid working condition GRINNELL AUTOCALL TFX DCPM DC/DC CONVERTER MODULE 125-065-769 as seen in picture. This came out of a working system that was fully functional a 100% the system was upgraded to newer system. I have a large number of All autocall/grinnel equipment available! Plus you get free Expedited Shipping but if you want different then it's extra. Please checkout my other other ebays on the Grinnell/Simplex Fire Protection System. This is priced to sell with plus free shipping.