I've been thinking about building a flowmeter for kegging from a conical so that I know when I've hit 5gal. I was thinking I could hook an Arduino up to some flowmeters like folks do for kegbot projects. Then I saw this at the bike shop yesterday for around $30:
http://www.camelbak.com/Sports-Recreati ... meter.aspx
Anyone know if this would be a safe and flavor-neutral option for kegging? Kinda seems too good to be true, but for that price I'd be willing to take a chance on a small quantity of low-cost beer.