Thermometer? what kind should i use to add protein to warm liquids

I am thinking about getting unflavored protein to add to more items. (Shakes and I are in a battle right now). What kind of thermometer do you use to check temperature of liquids (soups, coffee, tea, etc.)???

This is the one I picked up from Amazon, it works great:

http://www.amazon.com/CDN-DTQ450X-ProAccurate-Quick-Read-The rmometer/dp/B0021AEAG2/

But you should be able to pick up one at the supermarket that works fine. If you order a sample pack from Unjury they include a food thermometer that also works for that sort of thing.

I use a meat thermometer..LOL
I made some crockpot apple cinnamon oatmeal today and
I put vanilla protein powder in it to replace the Splenda I'd use and get some
Protein in...it was FANTASTIC!