Works great!
Came set up and ready to use, just had to pull the tab. Fits great around my 32 oz CamelBak. Easy to open to replace battery.<br /><br />Only downside is that I've had it for a few weeks and it just started doing a slow pulse once a minute or so and I can't figure out why. Tried changing the battery to be sure, still happens.
Rating: 5 stars