I have the PE2 ( Pro Exotics) I love it. Ebay has the PE1 for 23.95 shipped an the PE2 for 34.95 shipped. The difference between the two is the PE2 has a laser on it
I have the PE1, I recommend it. Cheap, pretty accurate, and has a variety of uses. I even use it for a quick reference checking water temps when I fill a soak bowl for my torts.
I just got the PE1 and like it. I had compared the price with some of the other lower cost temp guns found at home depot, etc... PE1 has a +-2 degree accuracy and most of the other lower cost brands had a +-5 degree accuracy.