There are several types of the Acu-Rite at WalMart, but here's a thread with a picture of the one BPers here use: http://www.ball-pythons.net/forums/s...ad.php?t=95415

It's not kept in the gardening section, but over in hardware, with a few other types of thermometer, $12. Took me awhile to find it. Sounds like they're getting rid of that probe and going wireless, so I guess I should stock up while this one is still available.