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Ok i am running a hydro-vac excavation truck and we are required to have a dead-man switch on our water hose to kil the flow of water if the wand slips out of grasp etc. we have been buying these cheap motorbike/dirtbike/sled killswitches and they never last more than 2 weeks, this is my thought: would it be possible to wear a battery operated remote transmitter on the users wrist that would send a wireless signal to a reciever in the truck to shut the water pump off if the wristlet came outside a perimeter of lets say 2-3 feet of a magnet or other simple device we could mount on the wand?

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If you were to use something like this for personnel safety it sould be approved for the use There are approved radio systems to remote control cranes and even train engines. Anything for safety would be redundent operation and would be very expensive. Try buying a kill switch asembly from a jet ski. They should be waterproof.

Posted on Jun 30, 2010

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