UK
I was interested in buying one last year, thinking it would be nice if I could check the next day when I'm safe to go and get my car from the pub. I emailed the police asking for recommendations, thinking I was being incredibly sensible and they would probably have a ready response for saddos like me. They didn't.
I was quite disappointed in the article, I was hoping a few models would be reviewed, but at $99, they are a bit steep ( that's what? 70 of the Queens finest English pounds? )