I was reading on here again about how inaccurate the Rutland Temp gauges are. Many are comparing them to their IR guns. I personally have found all 3 of mine to be very accurate. So I experimented with my gun and realized it could be people are using the gun too far away from the surface they are measuring. As you move away the target area it sees gets larger and the temp is averaged over that area. I know on my own stove the temp can vary greatly over the whole surface. I have the Rutland located in the middle right over the where the secondary box beam is located and where the highest temps typically are. If I point my gun around the perimeter of the gauge within 6" of it I get readings identical to each other. Wen I move back the delta occurs.