Considering the problems we had reaching emergency services on the Hope Princeton yesterday, I thought it would be worthwile to remind people of these locator devices.
One of us had one of these:
and a fellow who stopped to render assistance activated one of these:
Both units were picked up by emergency services, they asked us who had activated the units. They got both emergency transmissions. The guy who had turned on his spot unit turned it off after he found out we had already activated a locator. The cops still got the call and asked us who had activated it to ensure there was not another emergency in the same area.
So both of these units did their job when we had no way of reaching help via cell phone.
They are small and it would be fairly easy to keep one on you. Ideally, if you carry such a unit and are travelling by yourself, you should have this unit on your person. In the event of a crash you may be separated from your bike and may not be able to reach a unit on the bike.
Also, consider that in yesterday's crash, if one of us had not been within a relatively short distance of the downed rider, NO ONE would have known he crashed. The bike was not visible from the road, nor was the victim.
I was not that far behind, but far enough not to see him or the following rider to through that turn. It's easy to lose sight in tight turns. Groups get separated all the time. Had we not seen him crash, we might have thought he had sped up and was ahead farther. We probably would have gone on to Princeton and wouldn't have realized anything was wrong until he didn't show.
Then it would have been a matter of scouring many km's of highway to find the traces of his accident. In this case it would not have mad a difference to outcome, but one can easily imagine a scenario with an injured rider where hours without help would make the difference between life and death.