While older Curtis controllers like the basic 1204/1205 series were largely "fixed" in their behavior, later variations of the 1520 family offer programmability via the Curtis handheld programmer (Model 1311 or 1313) or a PC interface.
While older Curtis controllers like the basic 1204/1205 series were largely "fixed" in their behavior, later variations of the 1520 family offer programmability via the Curtis handheld programmer (Model 1311 or 1313) or a PC interface.