Water Temperature Gauge

Madcow

I am looking for a floating digital temperature gauge so I can see how cold the water is, any ideas?

What I am hoping to do is stop somewhere and drop it into the water attached to a cleat.

Babyboomer

Any pool supply store My multimeter has a temp probe on it just drop in water (The probe not the meter)

http://www.harborfreight.com/ac-dc-digital-multimeter-37772.html