I bought this device
http://www.mfssupply.com/ShockAlarm-...819.1494674063
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I bought this device
http://www.mfssupply.com/ShockAlarm-...819.1494674063
Aewsome thanks drew
I ended up picking up a similar version to what Drew posted ... Shock Alert
http://www.shockalert.com/
http://www.shockalert.com/wp-content...eb-Graphic.png
Def going to grab one of these devices. We have a large metal dock with a powered hoist. The mainline is plugged into our cabins shed power. Then it come to a GFCI before entering the dock. Then we have another GFCI on the dock. Then we have a GFCI that we plug the hoist pump into. I always unplug the mainline when not in use. I have forgotten a few times though with kids jumping in the water off the deck. I think one of these alarms is def in order. Thanks a bunch as I like many others had no clue about this....
might grab 2 so I can keep one in the overflow of our pool at our house too just in case.