Quote Originally Posted by The Serpent Merchant View Post
No they aren't. Not the cheap ones we use in the reptile hobby anyway. Most are +/- 2 degrees which is about the same as most cheap digital thermometers.

I think you get what you pay for. If you buy cheap you take the risk of it being off. That's why I said if you have a decent one I wouldn't worry about it.
But then again if you have a cheap thermostat & a cheap thermometer & try to use a cheap temp gun you'll never really know what your temps really are.