Want to test the limits with SWMBO? Tell her you want this: http://www.acitydiscount.com/Cooper-Atkins-Waterproof-Thermocouple-w-Hardwired-Probe-FW2000-3.0.30567.1.1.htm
It works great, has about a 3 foot cord, most of which is regularly submerged in my mash tun or boil kettle, is extremely quick and accurate, and indestructible.
I had no idea that the thing cost that much, though. My wife used to manage a taco bell. When they tore it down to rebuild, she got to take pretty much whatever smallwares she wanted. Apparently her district mgr didn't check pricing first. I just realized I need to be a bit more careful with the thing
It gets even better! She is a hop head! We have to brew a wheat every now and then for our friends that need something a little lighter. She is a huge fan of IPAs and it was her idea to make that our first batch in 8 years.