I single hand my 25' sailboat. At the start and finish, I run my diesel engine with my tiller tied off. (heading up wind.) I go forward to work sails, pull my anchor, or what ever. What happens if I go overboard?
I am looking for a "wireless tether" to kill the engine. The engine is not electrically controlled, so I have to install a solenoid and activate it ... somehow.
I am thinking when a rfid fob gets out of range it would activate the solenoid. Is there a better way? (electric fuel pumps are out of the question)
Battery operated fobs are OK, if they are waterproof!