I picked up a PLB the other day. I ride alone most times and figured it was a good idea.
I picked this one from lots and lots of review reading.
No yearly fee like the SPOT Locator and you don't have to rely on a special monitoring business. This unit has three levels of integrated signal technology - GPS positioning, a
powerful 406 MHz signal, and 121.5 MHz homing capability - the
ResQLink quickly and accurately relays your position to a
worldwide network of search and rescue satellites.
Can't beat peace of mind!