Stream Thermometers

[jtp]

What stream thermometers does everyone use (if any)? 

I've never carried one but would like to start and was just curious what everyone uses.  Seems like analog (orvis, fishpond) would take a long time and be hard to read (markings look like they are extremely close together and online product reviews generally confirm this), but it doesn't look like anyone makes infrared/digital thermometers that would be practical for wade fishing.  Any input is greatly appreciated!  

[FlyAndStream]

Amazon will sometimes carry a micro waterproof infrared digital thermometer. I use one because I don't like waiting for an analog one to give me a reading. They're around $15-$20 and about the size of your thumb.