@Duck this is the one we used. We kept it way down to like 15. It was enough to get his attention and he soon caught on that once he got the buzz/vibration, the next step got him a mild zap. Like you, I put it on my arm to see what it would do. Sorry, I'm no tough guy, that damned thing will make you pay attention. Even down low, I didn't like it, so I guess the dog got the message quickly. It took about 2 weeks for him to realize that when he listens, all was good. Get the vibrations and he knew what was next.
Amazon product ASIN B007RBDUTS
Sheesh, what a link!
@GAnthony your link went to this:
Not sure what you intended there. But the pictures were cool.