The Winch Kit (WK 1510) is an essential part of the CurtainMinder redesign. The WK 1510 is the only Winch Kit available. The WK 1510 is included in the CM 6010. The reed switch is used to notify the CurtainMinder when the hinge is opened. When using the WK 1510 on all winches with the CM 6000 in Reed Switch Mode, the winches all release at the same time.