Apollo Saturn launch umbilical switch and sensor assembly. Component measures 11″ long, with an affixed Kinetics Corporation label identifying the part, “Switch, Sensor Lift-Off, Umbilical…10-11-71,” with several inspectors stamps to the lower right. In fine condition. This switch would command release of a particular launch pad umbilical away from the Apollo Saturn rocket when lift-off motion was detected. RR Auction COA.