That's only the transmitter, he'll be needing a separate receiver.
It seems to me if you're in a place that remote then it's up to you too decide how much human life is worth and the best option for any emergency is to be well prepared and you'll need to run over many different scenarios of what might happen and what you'll need to survive any of those complications.I guess im going to have to ditch the whole idea and just hope nothing happens to anyone. It doesnt seem anything is really going to work.
Lol! Never seen that before!
mechanic