Product review (2 stars): Mostly inaccurate.
I have bought 6 of these in the past two years. Of the 6 I bought, only 2 were accurate within 5-10 degrees. I kept these 2 and returned the other 4. I would suggest buying one at Lowes or Home Depot so that you can easily return it until you get one that is accurate. The 4 that were not accurate always showed a much higher temp than was actually true.