The Foredom SXR foot control looks the same as the standard SCT control but they have special electronics that convert AC current to DC current, the type required by the TX, TXH, LX, and LXH motors.The SCT offers the same electronics and smooth control as the FCT but in a much heavier, cast iron housing. The added weight eliminates any unexpected movement of the control along the floor. The bottom surface of the SCT is covered with non-skid material. CSA listed. 6 3/4" long, 4" wide, 2 3/8" high, wt. 6lbs. 

* 2 year limited warranty.  See owners manual for complete detail.