Bought my temp gun from Lowes. Brand: General Model: IRT207 and did a comparison between the Accurite model I also have shown above, my Helix unit and temp gun and all measured within a differential of .5 degrees. Cost me about 30+ dollars and is probably over kill but my paranoia had gotten the best of me. Still a good investment overall for measuring temps of other related items(AC, engine turbos, etc etc,

Good Luck!