That's actually pretty cool if it works. I wonder what the range is?
I notice it's listed as a clearance item and the price has been reduced (still $350 though! - pretty pricey!) so obviously hasn't been popular enough to keep it alive as a product.
Either divers are not that interested, the price is just too high or it just doesn't work all that well. Could be any combination or even all three, I suppose! Too bad because if the product worked and was about half the price (preferably less), I would be interested.
Oh well. For now, I'll just keep an eye on my buddy (and try to remember to silence those darn computer alarms that everyone but me can hear!!)
A review of the product a few years back mention a range of 80m.
Buddy Watcher – ScubaGirl