Product Description: Kill Switch & Lanyard I/O & OB Weather resistant switch provides added safety for boat operators. The lanyard connects the boater to a switch which kills the ignition circuit if the boater falls overboard, or is at an unsafe distance from the controls. Can be turned on again, if need be, by a boater other than the operator. Can be installed either in boat systems that require a grounded emergency stop, or in systems that have an open circuit emergency stop. Works on any powerboat with an inboard or outboard motor. Full wiring instructions included. Housing dimensions: 2-3/4" x 2". Requires a space of 1/2" behind the panel, and mounts in a 1-1/2" diameter hole. 10A at 12-24V DC.